Gasoline. In March 2006, 16 gas stations in Grand Junction, CO, posted these prices for a gallon of regular gasoline:
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a) Make a stem-and-leaf display of these gas prices. Use split stems; for example, use two 2.2 stems-one for prices between $2.20 and $2.24 and the other for prices from $2.25 to $2.29.
b) Describe the shape, center, and spread of this distribution.
c) What unusual feature do you see?