Using the Binomial Probability Table. In Exercises 15-20, assume that random guesses are made for five multiple-choice questions on an ACT test, so that there are n = 5 trials, each with probability of success (correct) given by p = 0.20. Use the Binomial Probability table (Table A-1) to find the indicated probability for the number of correct answers.

Find the probability that all answers are correct.

Solution 20BSC

= 0.000