Provide an appropriate response. 1) The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. This distribution is not Binomial. a) Find the mean and standard deviation. x P(x) 0 0.07 1 0.68 IN 0.21 3 0.03 0.01 I b) Find the probability of at most 2 credit cards. c) Find the probability of at least 3 credit cards. Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table. Probabilities of Girls