HELP I have no idea how to do this.

The average height of the 140 million U.S. males is 5 ft. and 10 in. Some males from the U.S. become professional basketball players. The average height of the 350–450 professional basketball players in the NBA (National Basketball
Association) is about 6 ft. and 7 in. Which of the following probabilities should be larger? Or would they be similar?
The probability that a U.S. male over 6 ft. 7 in tall is a professional basketball player
The probability that a professional basketball player is over 6 ft. tall

Explain your reasoning.