Question: U. S. Census data for San Luis Obispo County, California, were used to construct the following frequency distribution for commute time ( in minutes) of

U. S. Census data for San Luis Obispo County, California, were used to construct the following frequency distribution for commute time ( in minutes) of working adults ( these frequencies were approximated from a graph that appeared in the San Luis Obispo Tribune [ September 1, 2002]):

a. Notice that not all intervals in the frequency distribution are equal in width. Why do you think that unequal width intervals were used?
b. Construct a table that adds relative frequency and density columns to the given frequency distribution.
c. Use the densities computed in Part (b) to construct a histogram for this data set.
Write a few sentences commenting on the important features of the histogram.

Commute Time 0 to 5 5 to 10 10 to

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