Asked by Daniela
At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 24 minutes and a standard deviation of 3 minutes. What is the probability that a randomly selected customer will have to wait less than 25 minutes, to the nearest thousandth?
Answers
Answered by
R_scott
25 min is 1/3 s.d. above the mean ... z-score of .333...
use a z-score table to find the portion of the population
... below a 1/3 z-score
use a z-score table to find the portion of the population
... below a 1/3 z-score
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