For each of the following studies, identify the type of graph (histogram, time series graph, or scatter

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For each of the following studies, identify the type of graph (histogram, time series graph, or scatter diagram) that would be the most appropriate. (You can use more than one graph of each type, for example, two histograms.)

a. Has the average grade in statistics classes risen or fallen in the past 20 years?

b. Can final exam scores in statistics classes be predicted from homework scores?

c. Can grades in statistics classes be predicted from overall GPAs?

d. Is there more dispersion in homework scores or final exam scores?

e. Is there more dispersion in grades in statistics classes or history classes?

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