The amount of money college students spend each semester on textbooks is normally distributed with a mean of $195 and a standard deviation of $20. suppose you take a random sample of 100 college students from this population. there would be a 68% chance that the sample mean amount spent on textbooks would be between what two values? explain just how you arrived at your answer.

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?