According to government data, about 78% of u. s. households have an automatic dishwasher. if 15 households are selected at random, what is the probability that 9 of them have an automatic dishwasher? enter your answer using three decimal places.

0.061

Step-by-step explanation:

Given : The probability of U.S. households have an automatic dishwasher.  : p=0.78

Sample size : n=15

Using binomial distribution, we have

, where P(x) is the probability of getting success in x trials , p is the probability of getting success in each trial.

Now, the the probability that 9 of them have an automatic dishwasher will be :_

Hence, the probability that 9 of them have an automatic dishwasher = 0.061

ab will be equal to