3.Between 10 A. M. and 11 A. M., 48 people came into Brad's store. 40 of them made a purchase. What is the experimental probability that the next
person to come into the store will make a purchase? What is the
experimental probability the next person to come into the store will make a
purchase? *
O A.40/48
O B.48/48
C.8/48
D.40/88

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?