You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you

Question

3 years ago

13

You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you

have not studied and so must guess (randomly select one of the five answers) on each question. Let x represent the number of correct responses on the test. What is your expected score on the exam?

Mathematics

1 answer:

xeze [42] · Answer 1 · 2022-06-08T10:52:46+03:00

xeze [42]3 years ago

6 0

Answer:

20

Step-by-step explanation:

This is a binomial distribution

n = 100; p = 1/5

E(x) = np = (100)(1/5) = 20