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courtlyn8
courtlyn8
30.10.2019 • 
Mathematics

Cars arrive at the wendy's drive-through at a rate of 1 car every 5 minutes between the hours of 11: 00 pm and 1: 00 am. on saturday nights. wendy's begins an advertising blitz that touts its late-night drive-through service and convenience. after one week of advertising, the wendy's marketing department conducts a survey at 200 wendy's to count the number of cars, x, that arrive at the drive-through between the hours of 12: 00 midnight and 12: 30 am on saturday night.question 1. use the poisson distribution to calculate the probability that exactly 8 cars will use the drive-through between 12: 00 midnight and 12: 30 am on a saturday night at wendy's. do the same for exactly 9 cars.p(x = 8) (use 4 decimal places)p(x = 9) (use 4 decimal places)question 2. at how many of the 200 restaurants in the survey would you expect exactly 8 customers to use the drive-through? exactly 9 customers? expected number of 200 restaurants in which exactly 8 customers use the drive-through.expected number of 200 restaurants in which exactly 9 customers use the drive-through.

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