Some customers of a retail chain have a store credit card that earns them bonus gifts when they make purchases at the chain. currently, 22 customers are shopping in a store in this chain. of these, half already have a store credit card. if employees offer store credit cards to 5 of these, what is the probability that all of those chosen already have a card? complete parts (a) through (e) below. (a) explain why it would not be appropriate to use a binomial model for the number of customers who already have a store credit card, among the 7 customers who were chosen xb. there are not two possible outcomes for each trial involved in randomly selecting the 7 customers who were offered a store credit card. c. the number who already have a card in the 7 customers who were offered a store credit card is not a random variable. d. the subset of the 7 customers who were offered a store credit card is too large and violates the 10% condition (b) a family of 7 is shopping in the store. noting that n c gives the number of ways of picking a subset of x items out of n, what is the probability that the 7 randomly selected shoppers are in this family? the probability that the 7 randomly selected shoppers are in this family is (round to seven decimal places as needed.)