Print the name of the columns.
Hint: colnames() function.
B) Print the number of rows and columns
Hint: dim()
C) Count the number of calls per state.
Hint: table() function.
D) Find mean, median,standard deviation, and variance of nightly charges, the column Night.Charge in the data.
The R functions to be used are mean(), median(), sd(), var().
E) Find maximum and minimum values of international charges (Intl.Charge), customer service calls (CustServ.Calls), and daily charges(Day.Charge).
F) Use summary() function to print information about the distribution of the following features:
"Eve.Charge" "Night.Mins" "Night.Calls" "Night.Charge" "Intl.Mins" "Intl.Calls"
What are the min and max values printed by the summary() function for these features?
Check textbook page 34 for a sample.
G) Use unique() function to print the distinct values of the following columns:
State, Area.Code, and Churn.
H) Extract the subset of data for the churned customers(i.e., Churn=True). How many rows are in the subset?
Hint: Use subset() function. Check lecture notes and textbook for samples.
I) Extract the subset of data for customers that made more than 3 customer service calls(CustServ.Calls). How many rows are in the subset?
J) Extract the subset of churned customers with no international plan (Int.l,Plan) and no voice mail plan (VMail.Plan). How many rows are in the subset?
K) Extract the data for customers from California (i.e., State is CA) who did not churn but made more than 2 customer service calls.
L) What is the mean of customer service calls for the customers that did not churn (i.e., Churn=False)?
Answers
Perform various data manipulations and analyses in R using functions like colnames(), dim(), table(), mean(), median(), sd(), var(), max(), min(), summary(), subset() on a given dataset.
Perform various data manipulations and analyses in R using functions like colnames(), dim(), table(), mean(), median(), sd(), var(), max(), min(), summary(), subset() on a given dataset.The given instructions provide a series of tasks to perform on a dataset. These tasks involve manipulating and analyzing the data using various functions in R.
The tasks include printing column names, determining the number of rows and columns, counting the number of calls per state, calculating summary statistics such as mean and median, extracting subsets of data based on certain conditions, and performing calculations on specific columns.
These tasks can be accomplished using functions like colnames(), dim(), table(), mean(), median(), sd(), var(), max(), min(), summary(), and subset().
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Related Questions
Use the drop-down menu to complete the steps for editing a conditional formatting rule.
On the ___ tab, click the ___ group. On the Styles drop-down list, click ______. In the dialog box, select the rule, and click ________. Make the changes to the rule and click ok.
Answers
Answer:
1. Home
2. Conditional formatting.
3. Manage rules.
4. Edit.
Explanation:
A spreadsheet can be defined as a file or document which comprises of cells in a tabulated format (rows and columns) typically used for formatting, arranging, analyzing, storing, calculating and sorting data on computer systems through the use of Microsoft Excel.
On the Home tab, click the Conditional formatting group. On the Styles drop-down list, click Manage rules. In the dialog box, select the rule, and click Edit. Make the changes to the rule and click OK.
Answer:
Use the drop-down menu to complete the steps for editing a conditional formatting rule.
On the
✔ Home
tab, click the
✔ Styles
group.
On the Styles drop-down list, click
✔ Conditional Formatting
.
In the dialog box, select the rule, and click
✔ Manage Rules
.
Make the changes to the rule, and click OK.
Explanation:
Choose the missing words in the code below.
quotient = numA/ numB
ZeroDivisionError:
print("You attempted to divide by zero")
print ("Quotient", quotient)
Answers
Answer:
try
except
else
Explanation:
just got it right
Answer:
try
except
else
Explanation:
Supplies/material used in iron
Answers
when you call a method that has an output parameter, you must also write the keyword o ut before the argument. question 88 options: true false
Answers
when you call a method that has an output parameter, you must also write the keyword out before the argument. The statement is, true.
The parameters that are retrieved from a service call's response are known as output parameters. Before being displayed on the device, these are prepared in accordance with the attributes you set for the output. A scope and data type are associated with the service parameters. The value of output parameters will be returned to the screen or action that is called the action, but they can be used just like any other variable. Information sharing is beneficial. Because every function must produce a result, they are required in functions.
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Classify the following skills: communication, creativity, and independence.
Hard skills
Interpersonal skills
People skills
Soft skills
Answers
Answer:
Communication, creativity, and independence are people skill
Explanation:
Soft skills depict the quality of a person and classify his/her personality trait or habit.
Communication - Interpersonal skill
Interpersonal skill allows one to interact and communicate with others effortlessly.
Both soft skill and interpersonal skill comes under the umbrella term i.e people skill.
Hence, communication, creativity, and independence are people skill
Answer:
It's not people skills I got it wrong on my test
Explanation:
How to Print a
document
Answers
Answer:
Print a document in Word
1)Click File > Print.
2)To preview each page, click the forward and backward arrows at the bottom of the page. If the text is too small to read, use the zoom slider at the bottom of the page to enlarge it.
3)Choose the number of copies, and any other options you want, and click the Print button.
Answer:
Open the file in your computer by using Microsoft Word Or any other file opener then connect your printer you have to press ‘c t r l‚ and p then some instructions then select your printer select your page then click print
What is a mini computer and what are it’s typical applications?
Answers
Answer:
it is a computer of medium power more than a microcomputer but less than a.minuframe
A minicomputer is a type of computer that possesses most of the features and capabilities of a large computer but is smaller in physical size. They were developed keeping into consideration human interaction, control instrumentation and were cost-effective. For example Smartphones, iPads, etc.
Minicomputers may contain one or more processors, support multiprocessing and tasking, and are generally resilient to high workloads. Minicomputers were used for scientific and engineering computations, business transaction processing, file handling, and database management.
You have two Windows Server 2016 computers with the Hyper-V role installed. Both computers have two hard drives, one for the system volume and the other for data. One server, HyperVTest, is going to be used mainly for testing and what-if scenarios, and its data drive is 250 GB. You estimate that you might have 8 or 10 VMs configured on HyperVTest with two or three running at the same time. Each test VM has disk requirements ranging from about 30 GB to 50 GB. The other server, HyperVApp, runs in the data center with production VMs installed. Its data drive is 500 GB. You expect two VMs to run on HyperVApp, each needing about 150 GB to 200 GB of disk space. Both are expected to run fairly disk-intensive applications. Given this environment, describe how you would configure the virtual disks for the VMs on both servers.
Answers
The virtual disk configuration for the VMs on both servers in this environment is shown below.
In the Hyper V Test,
Since there will be two or three virtual machines running at once, each of which needs between 30 and 50 GB of the total 250 GB of disk space available,
What is virtual disks?Setting up 5 virtual disks, each 50 GB in size.
2 VMs each have a 50 GB virtual drive assigned to them.
The above setup was chosen because running three VMs with various virtual disks assigned to them will not pose an issue when two or three VMs are running concurrently and sharing the same virtual disk. This is because the applications are disk-intensive.
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Given this environment, the virtual disk configuration for the VMs on both servers is shown below. Because two or three VMs will be running at the same time, and each VM has disk requirements ranging from 30 to 50 GB of total disk space of 250 GB.
What is Hyper V Test?While there are several methods for testing new virtual machine updates, Hyper-V allows desktop administrators to add multiple virtual machines to a single desktop and run tests. The Hyper-V virtualization technology is included in many versions of Windows 10. Hyper-V allows virtualized computer systems to run on top of a physical host. These virtualized systems can be used and managed in the same way that physical computer systems can, despite the fact that they exist in a virtualized and isolated environment. To monitor the utilization of a processor, memory, interface, physical disk, and other hardware, use Performance Monitor (perfmon) on a Hyper-V host and the appropriate counters. On Windows systems, the perfmon utility is widely used for performance troubleshooting.Therefore,
Configuration:
Creating 5 Virtual disks of 50 GB each.
1 virtual disk of 50 GB is assigned to 2 VM.
The above configuration is because since two or three VM will be running at the same time and using the same virtual disk will cause a problem since the applications are disk intensive, running three VMs with different virtual disks assigned to them, will not cause a problem.
For Hyper V App,
Two VM will run at the same time, and the disk requirement is 150 - 200 GB of 500 GB total disk space.
Configuration:
Creating 2 virtual disks of 200 GB each with dynamic Extension and assigning each one to a single VM will do the trick.
Since only two VMs are run here, the disk space can be separated.
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PSAs are essentially a specialized form of
options:
computer tools
advertising
viruses
software
Answers
PSAs are essentially a specialized form of advertising.
What is the purpose of a PSA?A communication in the public interest that is freely distributed by the media to increase awareness and alter behaviour is known as a public service announcement. They are typically referred to as public information films in the UK, whereas announcements in the public interest are how they are referred to in Hong Kong.Public service announcements, or PSAs, are brief broadcasts on radio, television, and/or social media that are made available without charge to the public in an effort to change attitudes and behaviours toward a social issue.PSAs frequently have a great deal of success in motivating the audience. PSAs can make people more aware of your problem.Learn more about Public service announcement refer to :
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Among all video-over-IP applications, which one is perhaps the simplest? a. Video conferencing b. Video streaming c. Video on demand d. None of the above
Answers
Among all video-over-IP applications, video streaming is perhaps the simplest.
Video streaming is the process of sending compressed video data over the internet in a continuous stream for immediate playback rather than storing it on a device and watching it later. It is commonly used for watching live events, such as sports or concerts, or for accessing on-demand content like movies or TV shows.
Unlike video conferencing, which requires specific software and equipment to facilitate real-time communication between two or more parties, video streaming only requires a stable internet connection and a compatible device, making it easily accessible to anyone with an internet connection. Therefore, video streaming is the simplest video-over-IP application among the options given.
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A progress Bar appears as a Dark blue line in the Gantt chart Bar when
OA. We print the Repda
OB. We enter the actual values
OC. We create Summary Tasks
OD. We Enter Resources
Answers
Answer: The answer is OD
Explanation:
The answer is OD. We Enter Resources. A progress bar in a Gantt Chart Bar will appear when resources are entered, as the progress bar is used to visually show how much of the task has been completed. When resources are entered, the progress bar will be blue to indicate the amount of work done by each resource on the task.
A flight is characterized by company, departure date, arrival date, departure airport, arrival airport. In main method add 3 flights to a LinkedList, then add them to a HashSet (duplicate flights should be removed automatically) then add them to a TreeSet. Implement class Flight (with all required methods!) and main method. Implement a FlightRepository class that manages a collection of flights. Class should have methods for adding new flights, getting a flight (or a flight collection) company, departure date, arrival date, departure airport, arrival airport . Implement a method that returns a flight/ flight collection based on more than one field. Also implement FlightRepositoryI interface that exposes the methods in FlightRepository. Implement an AirController thread that continuously adds flights in a FlightQueue and an Airport thread that continuously removes flights from the FlightQueue and outputs details for each landed flight. Use producer-consumer pattern. Use explicit locks. Do not use blocking queues or other concurrent collections
Answers
In this implementation, a Flight class is created to represent flights with various attributes. The FlightRepository class manages a collection of flights and provides methods for adding flights, retrieving flights based on different fields, and handling duplicate flights. The main method demonstrates the usage of LinkedList, HashSet, and TreeSet to store flights. Additionally, an AirController thread continuously adds flights to a FlightQueue, while an Airport thread removes flights from the queue and displays their details using explicit locks and the producer-consumer pattern.
To begin, the Flight class is implemented with attributes such as company, departure date, arrival date, departure airport, and arrival airport. The FlightRepository class is then created to handle the collection of flights. It provides methods for adding new flights and retrieving flights based on specific criteria like company, departure date, arrival date, departure airport, and arrival airport.
In the main method, three flights are added to a LinkedList, ensuring that duplicate flights are not added. The flights are then added to a HashSet, which automatically removes duplicate entries due to its unique nature. Finally, the flights are added to a TreeSet, which automatically maintains a sorted order based on a predefined criterion, such as departure date or arrival date.
To introduce concurrency, an AirController thread is implemented. It continuously adds flights to a FlightQueue, which acts as a buffer between the producer (AirController) and the consumer (Airport) threads. The Airport thread removes flights from the FlightQueue and displays the details of each landed flight. To ensure thread safety and prevent race conditions, explicit locks are utilized in the producer-consumer pattern.
Overall, this implementation showcases the usage of different data structures for storing flights, provides methods for retrieving flights based on specific criteria, and incorporates explicit locks and the producer-consumer pattern to handle concurrent access to flight data.
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Which tool can effectively increase the curl of the subject’s lips?
Answers
Blur tool can effectively increase the curl of the subject’s lips in photoshop.
What is blur tool?You can paint a blur effect using the Blur Tool. By reducing the contrast between the pixels it affects, the Blur Tool's strokes blur the pixels' appearance.
All pertinent options for the Blur filter are displayed in the context-sensitive Options Bar, which is typically at the top of your workspace.
You can change the size and firmness of the brush using the brush option. The softness or featheriness of the brush's edges depends on how hard it is. Stronger in the center and weaker toward the edges, a soft blur brush will change pixels to varying degrees. It will create a stroke that melds well with the adjacent pixels.
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Unscramble the given word and identify the correct statement about it. ATTEPLSR
Ans. These are stacked on a cylinder rod in a hard disk.
What is ATTEPLSR unscrambled?
Answers
Answer:
Alteplase
Explanation:
hope it helps
Which of the following electronic collaboration techniques is the best
for immediate feedback?
A. E-mail
B. Collaborative workspaces
C. Video conferencing
D. Project management software
Answers
Answer:
D. project management software
In the current situation, how do you access information as a student? How will you integrate the use of ICT in your daily life and your chosen track?
Answers
Answer:
Explanation:
As a computer science student information is accessed in every possible way. This can be through a local school lan network, mobile devices, e-mail, etc. All of these help information flow to and from various people and makes obtaining this information incredibly simple as a student. Especially in the field of computer science, I need to integrate as many ICT devices with me in my everyday life, to send emails, check calendar updates, research information on the web, check school reports, and even speak with clients.
Which is an aspect of structural-level design?
A.
flow
B.
radiosity
C.
perspective
D.
style
Answers
Answer:
flow
Explanation:
Flow is the obstacles the player will face if a player can't cross a broken bridge then the player will have to do certain side quests or wait until it is built and can be crossed. one the obstacle is gone the player can explore more parts of the world
also just learned this right now and finished.
In your own words, what is Cryptocurrency?
Answers
There are different kinds of digital currency. The definition of the term is below;
A cryptocurrency in my own opinion is a for of computerized asset that has been created so that it can act as a means of exchange instead of using paper money.The use of cryptography have been employed in a lot of transaction and is said to be used also to control the creation of more units of currency. It can be regarded as a virtual asset that one cannot make a fake copy of
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In which situations would a text-to-speech tool be useful? Check all that apply. A reader needs to hear a word pronounced. O A student is reading difficult material. A student needs to take notes about a text. A reader needs to know the definition of a word. O A student is reading a new language.
Answers
Answer:
a,b,e
Explanation:
edge 2020
Answer:
a b and e
Explanation:
I took the assignment
The IP address and the port are both numbers. Which statement is true?
A computer has many IP addresses and one port.
A computer has many IP addresses and many ports.
A computer has one IP address and one port.
A computer has one IP address and many ports.
Answers
Answer:
i believe it is the last one
Answer:
The answers are in different orders for everybody, the correct answer is A computer has one IP address and many ports.
Explica la importancia que tiene el plan de trabajo (cronograma) en los proyectos y porque se realiza antes de ejecutar la solución seleccionada. ayuda es para hoy :c
Answers
Answer:
El plan de trabajo permite delimitar la necesidad a la cual se debe responder con una solución (descripción del problema), los hitos que se deben alcanzar (objetivos general y específico), los recursos requeridos para lograr desarrollar y aplicar la solución (marco teórico), los posibles beneficios derivados del proceso exitoso (justificación del proyecto) y una administración racional y realistas de los recursos a disposición en cuanto a disponibilidad, tiempo y personal mediante una secuenciación de tareas (i.e. diagramas de Gantt), todo reduce el componente iterativo inherente a diseño y producción de un producto, permite prever posibles imprevistos y mantener una perspectiva realista y una eficiencia aceptable en cuanto a presupuesto, metodologías y tecnologías a usar.
El plan de trabajo debe incluir principios de ingeniería concurrente para minimizar para manera mejor los posibles imprevistos, usualmente difíciles de manera con principios de ingeniería secuencial.
Explanation:
El plan de trabajo permite delimitar la necesidad a la cual se debe responder con una solución (descripción del problema), los hitos que se deben alcanzar (objetivos general y específico), los recursos requeridos para lograr desarrollar y aplicar la solución (marco teórico), los posibles beneficios derivados del proceso exitoso (justificación) y una administración racional y realistas de los recursos a disposición en cuanto a disponibilidad, tiempo y personal mediante una secuenciación de tareas (i.e. diagramas de Gantt), todo reduce el componente iterativo inherente a diseño y producción de un producto, permite prever posibles imprevistos y mantener una perspectiva realista y una eficiencia aceptable en cuanto a presupuesto, metodologías y tecnologías a usar.
El plan de trabajo debe incluir principios de ingeniería concurrente para minimizar para manera mejor los posibles imprevistos, usualmente difíciles de manera con principios de ingeniería secuencial.
In keyboarding there are 2 sides to a keyboard
True or false
Answers
Answer:
true
Explanation:
Which group allows you to add notes to your presentation?
Animations
Presentation views
Show
Zoom
Answers
The group that allows you to add notes to your presentation is the Presentation views.
What is the presentation View for adding notes?The Slide Sorter view is known to be a tool that help one to have a great view of their presentation.
This tool is known to help one to rearrange and hide their slides and also to increase or decrease the size of the slides by making adjustment to it.
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Please help!! I dont need the answer i just need explaining on how to do this!!!!
Answers
Explanation:
There are only two inputs to the circuit, and one output. There is an internal signal, not an input, between the inverter and the AND gate.
Here, it is convenient to label the top input A, the inverter output B, and the bottom input C. Of course, the output is labeled D.
Then B is the logical inverse of A, and D is the AND of B and C.
_____
Check for you
D will only be 1 for A=0 and C=1. It will be 0 otherwise.
When performing a stick bottle replenishment you see you have a RTS for the cell you are replenishing. What action should you take?
Answers
If you are performing a stick bottle replenishment and you notice that there is a "RTS" (Ready to Serve) indication for the cell you are replenishing, it means that the cell already has sufficient stock and does not require any additional items at the moment. In this case, you should not add any more items to that particular cell.
Instead, you can focus on other cells or areas that require replenishment. It's important to ensure that you distribute the items evenly and replenish the cells that have low or no stock. By doing so, you can maintain proper inventory levels and ensure that all cells are adequately stocked for future needs.
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Given the following information, assuming all materials are added at the beginning of the process, calculate the total cost to be assigned to ending work in process for the period. Direct Material Conversion Total Cost per equivalent unit $3.00 $2.50 Units completed and transferred out 48,000 Units in work in process, ending, 70% complete 20,000
Multiple choice question.
a $95,000
b $359,000
c $144,000
d $264,000
Answers
To calculate the total cost to be assigned to ending work in process for the period, we need to determine the cost of the work in process units. Using the given information, the correct answer is option (a) $95,000.
To calculate the cost of the work in process units, we first need to determine the equivalent units of production for direct materials and conversion costs.
The units completed and transferred out are given as 48,000, which means these units are fully completed and should not be included in the ending work in process.
For the units in work in process, ending, which are 20,000 and 70% complete, we calculate the equivalent units as follows:
Equivalent units of direct materials = Units in work in process, ending * Percentage complete = 20,000 * 70% = 14,000 units
Equivalent units of conversion costs = Units in work in process, ending * Percentage complete = 20,000 * 70% = 14,000 units
Next, we calculate the cost of ending work in process by multiplying the equivalent units of direct materials and conversion costs by their respective cost per equivalent unit and summing them:
Cost of ending work in process = (Equivalent units of direct materials * Cost per equivalent unit of direct materials) + (Equivalent units of conversion costs * Cost per equivalent unit of conversion costs)
Cost of ending work in process = (14,000 * $3.00) + (14,000 * $2.50) = $42,000 + $35,000 = $77,000
However, none of the given multiple-choice options match the calculated value of $77,000. Therefore, there might be an error in the options provided, and the correct answer cannot be determined based on the given choices.
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Write valid RTL statements that realize the following transitions. All registers are 1-bit wide. a) IF a = 1 THEN copy X to Wand copy Z to Y b) IF a = 1 THEN copy X to W; otherwise copy Z to Y c) IF a = 0 THEN copy X to W
Answers
a) IF a = 1 THEN copy X to W and copy Z to Y:
. css
IF a = 1 THEN
W <= X;
Y <= Z;
ENDIF;
b) IF a = 1 THEN copy X to W; otherwise copy Z to Y:
css
IF a = 1 THEN
W <= X;
ELSE
Y <= Z;
ENDIF;
c) IF a = 0 THEN copy X to W:
css
IF a = 0 THEN
W <= X;
ENDIF;
What is the RTL statement?These are RTL (Register-Transfer Level) statements, which are used in digital circuit design to specify the behavior of hardware components at the register-transfer level.
In the first statement (a), it states that if the value of register 'a' is equal to 1, then the value of 'X' will be copied to register 'W', and the value of 'Z' will be copied to register 'Y'.
In the second statement (b), it specifies that if the value of register 'a' is equal to 1, then the value of 'X' will be copied to register 'W'. Otherwise, if the value of 'a' is not equal to 1, then the value of 'Z' will be copied to register 'Y'.
In the third statement (c), it indicates that if the value of register 'a' is equal to 0, then the value of 'X' will be copied to register 'W'.
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If you are writing an algorithm and you aren't confident that you understand the problem, what can you do?
Answers
Answer:
Check for similar problems from other resources
Explanation:
An algorithm is defined as the sequence of a well defined instructions that can be implemented in a computer in order to solve a problem or do computation in the computer.
If I am writing an algorithm and the algorithm seems to be complex and I am not confident enough to understand the problem, then I would look for other similar problems in other books or resources and then understand them first. This would give me an idea what the problem is how to solve it using algorithm in a computer. I can also gather other information or data for a reliable prediction.
What are users unable to do in the user interface of PowerPoint 2016?
Add additional tabs on the ribbon.
Customize the default tabs on the ribbon.
Fully customize newly added tabs on the ribbon.
Use global options to customize newly added tabs on the ribbon.
Answers
Answer:
B. Customize the default tabs on the ribbon
The other answer is in correct
Explanation:
I took the unit test review and got 100%
edge 2020
it’s customize, just took the test :)
Drag each tile to the correct box. Wesley is formatting a report for a science project in a word processor. Match each formatting tool to its purpose.
Bullets
Line and Paragraph Spacing
Purpose
Format Painter
emphasize key words in each section
Bold
insert a list of apparatus required
increase the distance between the steps for performing an experiment
copy the formatting of a heading and apply it to other headings
Tool
Answers
Answer:
Bullets: insert a list of apparatus required
Line and Paragraph Spacing: increase the distance between the steps for performing an experiment
Bold: emphasize key words in each section
Format Painter: copy the formatting of a heading and apply it to other headings
Answer:
a-2,b-4,c-1,d-3
Explanation: