Explore BrainMass

# Probability distribution for student survey

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

100 students in a statistics class were asked if they believed that all tests on the Monday following the football game win over their rival should be postponed automatically. The results were:

Strongly agree: 40
Agree: 30
Neutral: 20
Disagree: 10
Strongly disagree: 0

Numeric scale for each category is as follows:

Strongly agree = 5
Agree = 4
Neutral = 3
Disagree = 2
Strongly disagree = 1

a. Transform this into a numeric score, using the following random variable scale, and find a probability distribution for the results.

b. Let X = the numeric score. Compute the expected value of X.

c. Compute the variance and standard deviation for the random variable X.

https://brainmass.com/statistics/probability/probability-distribution-student-survey-46138

#### Solution Preview

I have attached the solution.
Probability distribution for student survey

100 students in a statistics class were asked if they believed that all tests on the Monday following the football game win over their rival should be postponed automatically. The results wre:

Strongly agree: 40
Agree: 30
Neutral: 20
Disagree: ...

#### Solution Summary

A solution that offers a response to a statistics question explaining the probability distribution for 100 students in a class.

\$2.19