(Answered) Determine the probability that a random smartphone

Statistics

Problem: There are approximately one billion smartphone users in the world today. In the United States the ages 13 to 55+ of smartphone users approximately follow a normal distribution with approximate mean and standard deviation of 36.9 years and 13.9 years, respectively.

Required:

Question: Determine the probability that a random smartphone user in the age range 13 to 55+ is between 23 and 64.7 years old. Support your statements with examples.

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