Amultiple choice examination has fifteen 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 the student answers at least ten questions correctly

Which account has the highest effective annual interest rate? not necessary but show how you got your answer.a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.