Richard Has Been Given an 11-Question Multiple-Choice Quiz in His

Multiple Choice

Richard has been given an 11-question multiple-choice quiz in his history class. Each question has five answers, of which only one is correct. Since Richard has not attended the class recently, he doesn't know any of the answers. The success occurs if Richard answers a question correctly and the failure occurs if Richard is unable to answer a question correctly. Assuming that Richard guesses on all 11 questions, find the probability that he will answer all questions incorrectly. Round your answer to the nearest thousandth.

A) 0.800
B) 0.086
C) 0.621
D) 0.909
E) 0.500