# Question: Which one of the following is true Why not the

Which one of the following is true? Why not the others?

a. Histograms are useful for visualizing correlations.

b. Pyramid charts are generally preferred to bar charts.

c. A correlation coefficient can be negative.

a. Histograms are useful for visualizing correlations.

b. Pyramid charts are generally preferred to bar charts.

c. A correlation coefficient can be negative.

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