Mathematics, 03.10.2019 03:20 TimaGarcia
In a certain region, suppose the ages of smartphone users approximately follow a normal distribution with approximate mean and standard deviation of 39.9 years and 9.1 years, respectively. determine the probability that a random smartphone user is at most 48 years old. • round your answer to four decimal places.
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In a certain region, suppose the ages of smartphone users approximately follow a normal distribution...
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