A true-false test consists of five questions. If you guess the answer to each question, what is the probability of getting all five questions correct?
A) 0%
B) 3.1%
C) 6.2%
D) 100%
E) None of the choices are correct

Question

Quizplus · Accepted Answer

The probability of guessing one question correctly is 0.5. For five questions, the probability is (0.5)^5 = 0.03125, which is 3.125%, rounded to 3.1%.

A True-False Test Consists of Five Questions