A multiple-choice quiz consists of fifteen questions. Each question has four responses, and only one of the answers is correct. Find the probability of guessing and getting exactly two correct. Round to four decimal places, if necessary.
A) 0.3118
B) 0.003
C) 0.2895
D) 0.1559

Question

Quizplus · Accepted Answer

The probability of guessing a correct answer is 0.25, and the probability of guessing incorrectly is 0.75. Using the binomial probability formula P(X=k) = C(n, k) * p^k * (1-p)^(n-k), where n=15, k=2, and p=0.25, the probability is approximately 0.1559.

A Multiple-Choice Quiz Consists of Fifteen Questions