A multiple choice quiz consists of 7 questions, each with 3 possible answers. If a student guesses at the answer to each question, then the mean number of correct answers is
A) 7.00
B) 2.33
C) 3.00
D) 10.00

Question

Quizplus · Accepted Answer

The mean number of correct answers is calculated by multiplying the probability of getting a question right (1/3) by the total number of questions (7), which equals 2.33.

A Multiple Choice Quiz Consists of 7 Questions, Each with 3