A multiple-choice examination has 15 questions, each with five possible answers, only one of which is correct. Suppose that one of the students who takes the examination answers each of the questions...

A multiple-choice examination has 15 questions, each with five possible answers, only one of
which is correct. Suppose that one of the students who takes the examination answers each of
the questions with an independent random guess. What is the probability that he answers at
least ten questions correctly using excel