Question

Find the probability of no more than 2 successes in a trial of 5 in which the probability of success in any one trial is 18%

Answer 1

Answer:

0.956

Step-by-step explanation:

X is the random variable representing the number of successes in the experiment in question;

X is represented by a binomial distribution with 5 trials and 0.18 probability of success, X~B (5, 0.18);

The probability of r successes, P(X=r), is found using the formula shown in second pic;

Working is shown in the other pic.