In a recent study, 90% of the homes in the

In a recent study, 90% of the homes in the United States were found to have large-screen ,TVs. In a sample of nine homes, what is the probability that:,a. All nine have large-screen TVs?,b. Less than five have large-screen TVs?,c. More than five have large-screen TVs?,d. At least seven homes have large-screen TVs?