A manager of a popular retail store knows that the distribution of purchase amounts by its customers is approximately normal with a mean of $28 and a standard deviation of $9. a. What is the probability that a randomly selected customer will spend less than $15? [ Select] b. What is the probability that a randomly selected customer will spend $20 or more? [ Select] c. What is the probability that a randomly selected customer will spend $28 or more? [ Select ]

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14. Suppose the Toronto Maple Leafs and the Edmonton Oilers make it to the 2021-2022 Stanley Cup Championship and are equally matched. The Stanley Cup is awarded to the first of the two hockey teams to win four games against the other (i.e. the teams compete in a best-of-seven series of games). Games 1 and 2 are played in Toronto while games 3 and 4 are played in Edmonton. If necessary, games 5 and 7 would be played in Toronto while game 6 would be played in Edmonton. Games are independent of one another, and the probability that a team wins any given game is 3/5 when it plays on home ice. What is the approximate probability that the Toronto Maple Leafs win the Stanley Cup if they lose games 1 and 2? а. 15.47% b. 16.47% с. 17.47% d. 18.47%

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