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2.3 Exercise 9

Avg difficulty 2.5

A researcher conducted a study on the effect that playing video games has on memory recall. As part of the study, they 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 Introductory Business Statistics 2e, 2.3 Measures of the Center of the Data, exercise 9

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Adapted from Introductory Business Statistics 2e © 2023 Rice University. Licensed under CC BY 4.0. Source: Introductory Business Statistics 2e. Imported at revision 50ec917.