10. [17.69 Points] WAC KERLYSTAT7 3.5.075. MY NOTES ASK YOUR TEACH ER PRACTICE AN 0TH ER The probability of a customer arrival at a grocery service counter in any one second is equal to 0.4. Assume that customers arrive in a random stream, so an arrival in any one second is independent of all others. (Round your answers to four decimal places.) (a) Find the probability that the rst arrival will occur during the third one-second interval. S (b) Find the probability that the rst arrival will not occur until at least the third oneisecond interval. Need Help? @ 11. [47.69 Points] WACKERLYSTATT 3.5.079. ASK YOUR TEACHER PRACTICE ANOTHER In responding to a survey question on a sensitive topic (such as "Have you ever tried marijuana?"), many people prefer not to respond in the affirmative. Suppose that 90% of the population have not tried marijuana and all of those individuals will truthfully answer no to your question. The remaining 10% of the population have tried marijuana and 60% of those individuals will lie. Derive the probability distribution of Y, the number of people you would need to question in order to obtain a single affirmative response. My): fury=1.2.m Need Help? _