There have been 58 presidential inaugurations in U.S. history. At each one, the president has made an inaugural address. Following are the number of words spoken in each of these addresses.

a. Construct a frequency distribution with approximately five classes.

b. Construct a frequency histogram from the frequency distribution in part (a).

c. Construct a relative frequency distribution using the same classes as in part (a).

d. Construct a relative frequency histogram from this relative frequency distribution.

e. Are the histograms skewed to the left, skewed to the right, or approximately symmetric?

f. Construct a frequency distribution with approximately nine classes.
g. Repeat parts (b)–(d), using the frequency distribution constructed in part (f).
h. Do you think that five and nine classes are both reasonably good choices for these data, or do you think that one choice is much better than the other? Explain your reasoning.

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