Forty-eight randomly selected car owners were asked about their typical monthly expense on gas. The following data show the responses of these 48 car owners.

a. Construct a frequency distribution table. Use the classes 50–149, 150–249, 250–349, 350–449, and 450–549.
b. Calculate the relative frequency and percentage for each class.

c. Construct a histogram for the percentage distribution made in part b.
d. What percentage of the car owners in this sample spend $350 or more on gas per month?
e. Prepare the cumulative frequency, cumulative relative frequency, and cumulative percentage distributions using the table of part a.

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