A true/false pop quiz contains seven questions. What is the probability that when guessing, a student will get at least one question correct? (Round to the nearest hundredth)
A)1.00
B)0.50
C)0.97
D)0.99

Question

Quizplus · Accepted Answer

The probability of getting all questions wrong is (1/2)^7 = 0.0078. Therefore, the probability of getting at least one question correct is 1 - 0.0078 = 0.9922, which rounds to 0.99.

A True/false Pop Quiz Contains Seven Questions