Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 28% of all homeowners are insured against earthquake damage. Four homeowners are to be selected at random. Let X denote the number among the four who have earthquake insurance. Requried:
a. Find the probability distribution of X.

x 0 1 2 3 4
p(x) ___ __ __ __ __

b. What is the most likely value for X?
c. What is the probability that at least two of the four selected have earthquake insurance?