Which of the following statements about customer needs is true? O a) Satisfied customers will lead to more business. O b) Customer needs often remain the same. O) Customers don't listen to their friends' reviews or advice. O d) Customers are unmotivated by discounts and free service.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.