According to Common Sense Media, U.S. teenagers spend an average of 9 hours a day on media,

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According to Common Sense Media, U.S. teenagers spend an average of 9 hours a day on media, including cell phones, TV and internet. Assume the standard deviation is 2 hours. According to the empirical rule, approximately what percent of U.S. teenagers spend between 7 and 11 hours a day on media?

Posted Date: Jun 25, 2024 12:04 PM

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According to Common Sense Media, U.S. teenagers spend an average of 9 hours a day on media,

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