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2.5 Exercise 9

Avg difficulty 2.5

Maris conducted a study on the effect that playing video games has on memory recall. As part of her study, she compiled the following data:

Hours Teenagers Spend on Video Games Number of Teenagers
0–3.53
3.5–7.57
7.5–11.512
11.5–15.57
15.5–19.59

What is the best estimate for the mean number of hours spent playing video games?

OpenStax Statistics, 2.5 Measures of the Center of the Data, exercise 9

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