A store owner wants to know how many of her 600 regular customers prefer canned vegetables. Each of her three cashiers randomly surveys 20 regular customers. Vegetable Preference Fresh Canned

A l 11 l 9 l

B l 14 l 6 l

C l 12 l 8 l

Use each sample to make an estimate for the number of regular customers of the store who prefer fresh vegetables.

Sample A B C

Estimate l l l l l l

Describe the variation of the estimates.

Range: l l customers