Find the probability that a male has a back-to-knee length less than 21 in. Inuse the data

Question:

Find the probability that a male has a back-to-knee length less than 21 in.

Inuse the data in the table below for sitting adult males and females (based on anthropometric survey data from Gordon, Churchill, et al.). These data are used often in the design of different seats, including aircraft seats, train seats, theater seats, and classroom seats.