C The Following problem C in, Th Following problem 1837 In the following problem
ID: 3066337 • Letter: C
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C The Following problem C in, Th Following problem 1837 In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. what's your favorite ice cream flavor? For people who buy ice cream, the all time favorite 5 stn vanda. About 27% of ice cream sales are vanda, docolate accounts for my 8% of ice croam sales. Suppose that 173 customers go to a grocery store in Cheyenne, wyoming, today to buy ice cream. (Round your answers to four decimal places.) a) What is the probability that So or more will buy vanla? b) what is the probablity that 12 or more will buy chocolate? 0 7439 (c) A customer who buys ice cream is not limited to one container or one flavor what is the probablty that someone who is buying ice cream ail buy chocolate or vanilla Hint: Chocolate flavor and vanilla Ravor are not mutually exclusive events. Assume that the choice to buy one flavor is independent of the choice to buy another favor. Then use the multipication rule for independent events, together with the addition nude for events that are not mutualy exckusive, to compute the requested probablaty. 03284 What is the probability that between 50 and 60 customers wil buy chocolate or vanila ice cream? Hint: Use the probability of success computed in part (e). Need Help? Submit Answer Save Progress Pracice Andther Version LMy 2/2 points I Pretous Answers BBUnderStat12 6 6.015M Based on long expenence, overbooks this fight by selling 269 ticket reservations for an arplane with only 255 seats anarine fund that about 8% of the people makng reservations on a flight from Miami to Denver do not a) what is the probablity that a person holding a reservation witl show up for the fight 92 up for the fight What expression t reservations. Let r represent the number of people with reservations who show (b) Let n 269 represent the rnumber of ticke upExplanation / Answer
d)
probability that between 50 and 60 will buy Chocolate or Vanilla:
( please try probability =0.6065 if 50 and 60 are inclusive)
for normal distribution z score =(X-)/ here mean= = 56.8132 std deviation == 6.177Related Questions
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