Question

Assume that a procedure yields a binomial distribution with a trial repeated n times. use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. round to three decimal places. n = 30, x = 5, p = 1/5

Answer 1

`P(5\ successes)=30C5*((1)/(5))^(5)*((4)/(5))^(25)=0.172`