To perform during the improvisation section of their concert, the director of the school of jazz band draws lots to randomly choose 4 players from the 4 trumpet players, 5 saxophone players, and 2 keyboard players.

Answer 1

The director then announces the chosen players - 2 trumpet players, 1 saxophone player, and 1 keyboard player. These four musicians will now have the opportunity to showcase their skills during the improvisation section of the concert. The audience eagerly awaits to see what these talented musicians will bring to the performance.