Author Question: On a multiple choice test with 23 questions, each question has four possible answers, one of which ... (Read 26 times)

Ebrown · **on:** Aug 1, 2018

On a multiple choice test with 23 questions, each question has four possible answers, one of which is correct. For students who guess at all answers, find the mean for the number of correct answers.

A) 17.3 B) 7.7 C) 5.8 D) 11.5

Question 2

A die is rolled 8 times and the number of times that two shows on the upper face is counted. If this experiment is repeated many times, find the mean for the number of twos.

A) 2.67 B) 2 C) 1.33 D) 6.67