A gardening inspector randomly selects people one be one from a large population until she finds someone who has heard of PL Melons. Let X be the number of selected people who have not heard of PL Melons before the first person who has heard of PL Melons is found. Let Y be the number of selected people who have not heard of PL Melons before the second person who has heard of PL Melons is found. Suppose 27% of the population has heard of PL Melons. a. What is the probability that none of the first four people selected have heard of PL Melons?? | b. What is the expected value of X? c. What is the variance of X? d. What is the probability that X = 0? e. What is the probability that X ≤ 4? f. What is the probability that Y = 6? g. What is the probability that Y = 0?

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