A test consists of 700 true or false questions. If the student guesses on each question, what is the mean number of correct answers?
A)350
B)0
C)700
D)140

Name: A test consists of 700 true or false questions. If the student guesses on each question, what is the mean number of correct answers? A)350 B)0 C)700 D)140
Brand: Quizplus
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Question

Quizplus · Accepted Answer

For each question, the probability of guessing correctly is 1/2. Therefore, the mean number of correct answers out of 700 questions is 700 * (1/2) = 350.

A Test Consists of 700 True or False Questions