A multiple-choice test consists of five questions, each with A-E answers. If you guess the answer to each question, what is the probability of getting four or more questions correct?
A) 5.1%
B) 6.4%
C) 0.032%
D) Less than 1%

Question

Quizplus · Accepted Answer

The probability of guessing correctly on a single question is 1/5. Using the binomial probability formula, the probability of getting exactly 4 or 5 questions correct is very low, less than 1%.

A Multiple-Choice Test Consists of Five Questions, Each with A-E