Probability using binomial distribution.
Dr. Richmond, a psychologist, is studying the daytime television viewing habits of college students. She believes 45 percent of college students watch soap operas all through the afternoon. To further investigate, she selects a sample of 10.
a. build up a probability for the number of students in the sample who watch soap operas.
b. Find out the mean and standard deviation of this distribution.
c. What is the probability of finding exactly four watch soap operas?
d. What is the probability less than half of the students selected watch soap operas.