22) A

Subtract the each cumulative percentage from the succeeding cumulative percentage.3 or less = 4% (this should be on the graph for 3 or less)

6 or less = 15 – 4 = 11% (this should be on the graph for 6 or less)

9 or less = 39 – 15 = 14% (this should be on the graph for 9 or less)

12 or less = 60 – 39 = 21% (this should be on the graph for 12 or less)15 or less = 79 – 60 = 19% (this should be on the graph for 15 or less)

18 or less = 91 – 79 = 12% (this should be on the graph for 18 or less)

This is only shown by graph A. So, A is the correct answer.

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