Seventy-six percent of stay-at-home mothers have a college degree or higher. You randomly select five stay-at-home mothers and ask them whether they have a college degree or higher. The random variable represents the number of stay-at-home mothers who have a college degree or higher.

(a) Construct a binomial distribution. 

(b) Graph the binomial distribution using a histogram and describe its shape, and (c) identify any values of the random variable x that you would consider unusual. Explain your reasoning.