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☐ A
☐ E
A supermarket manager has determined that the amount of time customers spend in the supermarket is
approximately normally distributed with a mean of 45 minutes and a standard deviation of 6 minutes. Find the
probability that a customer spends less than 48 minutes in the supermarket.
Let P(Z <0.5) 0.6915, P(Z < 0.6) = 0.6854, P(Z<0.7) = 0.7512 and P(Z < 1.2) = 0.8756.
A. 0.7512
B. 0.8756
C. 0.6915
D. 0.6954
E. None of the other choices is correct
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