Question: When 36 randomly selected customers left a convenience store, each was asked the number of items he or she purchased. Construct a frequency distribution. histogram, and frequency polygon for the data.

2 9 4 3 6 6 6 2 8 6 5 5

7 5 3 8 6 6 6 2 3 2 4 4

6 9 9 8 9 9 4 2 1 7 4 4