Consider the distribution of the prices of 15-pound bags of 15 different brands of dog food. Complete parts (a) through (d) below.

1. How many peaks would you expect for the distribution?

A. There would probably be no peaks. The prices of competing products tend to form a uniform distribution.

B. There would probably be one peak because there are no obvious reasons why the prices of dog food would form different groups.

C. There would probably be many peaks corresponding to the different brands.

D. There would probably be three peaks, one for the low priced items, one for the average priced items, and one for the high priced items.

2. What shape would you expect for the distribution?

A. The distribution would probably be right-skewed because it is likely that there would be a few very low priced brands, but no very high priced brands.

B. The distribution would probably be left-skewed because it is likely that there would be a few very high priced brands, but no very low priced brands.

C. The distribution would probably be symmetric because all the brands would tend to have nearly the same price.

D. The distribution would probably be symmetric because there are no obvious factors to indicate that there would be more high or low priced items.

3. What variation would you expect in the distribution?

A. The variation would probably be moderate because all the brands would tend to have nearly the same price.

B. The variation would probably be moderate because there are no obvious reasons to expect an especially large or small amount of variation.

C. The variation would probably be large because there would likely be several groups with very different prices.

D. The variation would probably be small because all the brands would tend to have nearly the same price.