An exam consists of 50 multiple choice questions. Based on how much you studied, for any given question, you think you have a probability of 0.64 of getting the correct answer. Consider the sampling distribution of the sample proportion of correct questions out of 50. (a) Find the mean and standard error of the sampling distribution of this proportion; (b) What do you expect for the shape of this sampling distribution? - approximately normal because n is large; - cannot be determined because p is greater than 0.5; - cannot be determined because n is large; - approximately normal because the population is normal.