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Monthly cell phone bill is assumed to follow a normal distribution with a mean of $47 and standard deviation $8. What is the probability that
Monthly cell phone bill is assumed to follow a normal distribution with a mean of $47 and standard deviation $8. What is the probability that a randomly selected phone bill will be more than $63?
A. | 0.0228 |
B. | 0.9772 |
C. | -0.0228 |
D. | -0.9772 |
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