Concept explainers
Making Scatterplots. Consider the following data sets.
a. Make a
b. State whether the two variables appear to be correlated, and if so, state whether the
c. Suggest a reason for the correlation or Lack of correlation. If you suspect causality, discuss what further evidence you need to establish it.
27. The following table gives the average hours of traditional (network and cable) television watched per week in five age categories (data for 2016). For the age categories, use the data points 6, 15, 21, 40, 65.
Age | Weekly TV hours |
2-11 | 21.1 |
12-17 | 15.5 |
18-24 | 17.3 |
25-54 | 31 |
>55 | 49 |
Source: Nielsen Media Research.
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