Please provide me with excel formula. I have solved the problem and only left to do is to put in excel. Only send excel formula to this question

A B D F G 28 percent of all customers who enter a store will make a purchase. Suppose that 6 customers 2 enter the store and that these customers make independent purchase decisions. W 4 Required: 5 n p 6 28 X 6 8 a) Calculate the probability that exactly five customers make a purchase. 9 10 b) Calculate the probability that at least three customers make a purchase. 11 12 c) Calculate the probability that two or fewer customers make a purchase. 13 14 d) Calculate the probability that at least one customer makes a purchase. 15 16 e) Calculate the expected number of customers that make a purchase 17 18 19