On a multiple choice test with 17 questions, each question has four possible answer, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers.

a. 12.8

b. 8.5

c. 4.3

d. 5.7

Question

Bobby

11 May, 02:39

+5

Answers (1)

Know the Answer?

Allen Carson · Answer 1

C. 4.3

Step-by-step explanation:

Given that

n = 17

P = 1/4

Using binomial

Mean = np

Mean = 17 * (1/4)

= 17 *.25

= 4.25

Approximately = 4.3

On a multiple choice test with 17 questions, each question has four possible answer, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers.a. 12.8b. 8.5c. 4.3d. 5.7