Question

According to a survey of 25,000 ​households, 59 % of the people watching a special event on TV enjoyed the commercials more than the event itself. Complete parts a through e below based on a random sample of nine people who watched the special event.

a. What is the probability that exactly three people enjoyed the commercials more than the​ event? The probability is nothing. ​(Round to four decimal places as​ needed.)

b. What is the probability that less than four people enjoyed the commercials more than the​ event? The probability is nothing. ​(Round to four decimal places as​ needed.)

c. What is the probability that exactly seven or eight people enjoyed the commercials more than the​ event? The probability is nothing. ​(Round to four decimal places as​ needed.)

d. What are the mean and standard deviation for this​ distribution? The mean is nothing. ​(Type an integer or a​ decimal.) The standard deviation is nothing. ​(Round to four decimal places as​ needed.)

e. Construct a histogram for this distribution.

Answer 1