Mathematics, 17.12.2021 01:10 brooke0713
There are approximately one billion smartphone users in the world today. In the United States, the ages of smartphone users follow approximately normal distribution with the mean of 36.9 years and the standard deviation 13.9 years. Find the percent of all smartphone users whose age is above 50 years old. Group of answer choices 16.4% 17.3% 82.7% None of these answers. 94.2%
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There are approximately one billion smartphone users in the world today. In the United States, the a...
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