SOLUTION: a certain fast-food chain sells cheeseburger. on a typical weekday, the demand for these burgers can be approximated by a normal distrubution with the mean of 313 burgers and a sta

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Question 1167025: a certain fast-food chain sells cheeseburger. on a typical weekday, the demand for these burgers can be approximated by a normal distrubution with the mean of 313 burgers and a standard deviation of 57 burgers. if the fast-food chain has a stock of 400 burgers, what is the probability that it will run out of burgers
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z > (400-313)/57
z>(87/57)
probability of that is 0.0635 or 6.35%.