Question
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
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?
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An Introduction To Categorical Data Analysis
Authors: Alan Agresti
2nd Edition
0470653205, 9780470653203
