I got the answers already and correct me if I am wrong. I just need help finding the mean and standard deviation for section B.

A quiz consists of 8 multiple choice questions, each with 5 possible answers.

a. If a student guesses on all 8 of the questions, do the number of questions
answered correctly form a binomial distribution?

A. Yes

b. If "yes", give the mean (µ) and standard deviation (σ), if "no" give at least 1
requirement of a binomial distribution that is not met.

I GOT : Yes it’s a binomial. p= 1/5=.2

1 answer

yes