Forty-nine percent of working mothers do not have enough money to cover their health insurance deductibles. You randomly select seven working mothers and ask them whether they have enough money to cover their health insurance deductibles. The random variable represents the number of working mothers who do not have enough money to cover their health insurance deductibles.

(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.