An arcade manager wants to know how many of his 750 regular customers prefer to visit in the winter. Each of five staff members randomly surveys 25 regular customers. The table shows the results. Preferred Season to Visit Arcade
Spring Summer Fall Winter
A 4 4 6 11
B 5 3 7 10
C 5 5 5 9
D 4 5 6 10
E 4 4 5 12
Question 1
a. Use each sample to make an estimate for the number of regular customers who prefer to visit in the winter.
Sample A B C D E
Estimate

Question 2
b. Describe the variation of the estimates.
Range:
customers