logo Use SA10RAM to get 10%* Discount.
Order Now logo

Ask This Question To Be Solved By Our ExpertsGet A+ Grade Solution Guaranteed

expert
Richardd RussellHistory
(4/5)

628 Answers

Hire Me
expert
Rahul BansalManagement
(5/5)

657 Answers

Hire Me
expert
Bhupesh SinglaComputer science
(5/5)

973 Answers

Hire Me
expert
Nagendra Singh ChauhanMathematics
(/5)

848 Answers

Hire Me
R Programming
(5/5)

During a one-day blood drive 300 people donated blood at a mobile donation center.

INSTRUCTIONS TO CANDIDATES
ANSWER ALL QUESTIONS

Problem 1

During a one-day blood drive, 300 people donated blood at a mobile donation center. The blood types of these 300 donors are summarized below.

Blood Type Sample

Blood Type  Frequency

O                 136

A                 120

B                 32

AB              12

1. Create the relative frequency bar graph using R using the prop.table() method on the given frequencies. Please label the axes and title your graph. Copy and paste the code you entered in RStudio and include the resulting graph into your MS Word document.

2. Run the prop.table() command method on the given frequencies to find the percentage of each blood type is in the sample. Round each percentage to the nearest one decimal place.

Problem 2

Consider the following random sample of battery life-times measured in hours.

4285, 2066, 2584, 1009, 318, 1429, 981, 1402, 1137, 414, 564, 1278, 205, 3920, 604, 14, 4152, 209, 349,

478, 602, 3770, 726, 1379, 99, 510, 737, 852, 3032, 1461, 3894, 2662, 582, 308, 1560, 1786, 520, 396,

701, 1406, 261, 83, 497, 35, 2778, 1379, 3367, 99, 373, 454

Use R to create the histogram for this data. Please use the appropriate labels and titles in your graph. Copy and paste the code you entered in RStudio include the resulting graph into your MS Word document. Allow R to decide the breaks.

Problem 3

Using the work done in Problem 2, use the classes created by R to make a table containing the

1. Frequencies for each class; and

2. The cumulative frequencies

Problem 4

Using the work done in Problem 2, use R to create the density histogram with the density curve on top of the density histogram. Copy and paste the code you entered in RStudio and include the resulting graph into your MS Word document.

Problem 5

Use the graph from Problem 4 to determine if the graph is bell-shaped, skewed-left, or skewed-right. Provide an explanation of your answer.

(5/5)
Attachments:

Related Questions

. The fundamental operations of create, read, update, and delete (CRUD) in either Python or Java

CS 340 Milestone One Guidelines and Rubric  Overview: For this assignment, you will implement the fundamental operations of create, read, update,

. Develop a program to emulate a purchase transaction at a retail store. This  program will have two classes, a LineItem class and a Transaction class

Retail Transaction Programming Project  Project Requirements:  Develop a program to emulate a purchase transaction at a retail store. This

. The following program contains five errors. Identify the errors and fix them

7COM1028   Secure Systems Programming   Referral Coursework: Secure

. Accepts the following from a user: Item Name Item Quantity Item Price Allows the user to create a file to store the sales receipt contents

Create a GUI program that:Accepts the following from a user:Item NameItem QuantityItem PriceAllows the user to create a file to store the sales receip

. The final project will encompass developing a web service using a software stack and implementing an industry-standard interface. Regardless of whether you choose to pursue application development goals as a pure developer or as a software engineer

CS 340 Final Project Guidelines and Rubric  Overview The final project will encompass developing a web service using a software stack and impleme

Get Free Quote!

367 Experts Online