SOLUTION: A store manager randomly inspected the sales slip for a sampling of his customers.He found that out of the 60 people he inspected, 3 had a mistake on the sales slip. If he expects

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Question 1075399: A store manager randomly inspected the sales slip for a sampling of his customers.He found that out of the 60 people he inspected, 3 had a mistake on the sales slip. If he expects to have 850 customers a day, how many of those will likely have a mistake on the sales slip.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
3/60=x/850
60x=2550 by cross-multiplication
x=42.5, 42 or 43.
It is 1 out of 20.