Question: R problem NoU

R problem

NoU <- read.csv("http://stat.umn.edu/~wuxxx725/data/Getting2NoUS2020.csv", header = T)

attach(NoU)

Suppose we randomly select a student from the class of STAT 3011 and letXdenote the number of traffic tickets he/she had in the past.

(a)What type of random variable isX?

(b)Draw a table to provide the probability distribution ofX. You many find the results of following

commands useful.

table(traffic.tickets)

nrow(NoU)

(c)Find the mean and the standard deviation ofX

(d)Find the probability that the student has at least three tickets.

The result of the R is

table(traffic.tickets)

traffic.tickets

0 1 2 3 4 5

228 42 14 7 3 3

nrow(NoU)

[1] 297

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Q:

Problems A good approach to statistical analysis is to have an analysis plan in mind before you look at the data. What procedure would you use to analyze the following scenarios? For complete credit,...

Q:

It is R problem I am just so confused with the process. Thank you so much! You may assume that the test statistic is t = -13.91 and the p-value is 6.9 x 10 R Problem: Please include all relevant R...

Q:

How to solve this R problem? Please includes and provide steps which mentioned in the question! R Problem: Please include all relevant R codes and outputs for full credit. Consider the dataset...

Q:

R Problem: Please include all relevant R codes and outputs for full credit. Consider the dataset Getting2NoUF2020.csv collected from the Getting to Know You Survey at the beginning of the semester....

Q:

4. R Problem In this problem, we will use the student survey data set. Import the data using the following command: NoU

Q:

How to solve this statistics question using RStudio. Please explain using a screenshot R Problem In this problem, we will use the student survey data set. Import the data using the following command:...

Q:

Set Student Name: 1. Describe the relationship between two variables that have a correlation coefficient value: a. Near -1 b. Near 0 c. Near 1 2. Data was collected where a weightlifter was asked to...

Q:

Instuctor's Annotated Edition TENTH EDITION Understandable Statistics Concepts and Methods Charles Henry Brase Regis University Corrinne Pellillo Brase Arapahoe Community College Australia Brazil...

Q:

uiz 2 SHOW ALL WORK to receive credit. 1. 3 pts. Use the sum or difference identities to evaluate exactly (no decimal approximations): cos285 2. In questions 2A, 2B, 2C, and 2D below, find the exact...

Q:

2-6 II. The Total Future Value of a Steady Stream of Payments $100 at the beginnin of every month, NOW, Suppose we open an account and invest starting today, for 30 years. At the end of the 30 years,...

Q:

Identify two models of criminal justice. In your own words, describe each. Include at least one fundamental problem for each of the two models.

Q:

Assume that the fair value of a cash- generating business unit is estimated at $ 17,000,000, while carrying value of the net assets is $ 22,000,000. What is the problem? What is the next step?

Q:

Question 3 8 ( 2 points ) Saved Confidentiality is appropriately maintained in creating, storing, accessing. transferring, and disposing of client records that are a ) Completely under the control of...

Q:

11:22 AM/ Remaining: 107 min Question6 Tidwell Industries has the following overhead costs and cost drivers. Direct labor hours are estimated at 100000 for the year. Est. Overhead $ 500 orders 450...