In addition to the batting average, another measure of hitting performance in baseball is called the slug¬ging average. In finding a slugging average, a single is worth 1 point, a double is worth 2 points, a triple is worth 3 points, and a home run is worth 4 points. A player's slugging average is the total number of points divided by the total number of at-bats (neglecting walks, sacrifices, and a few other special cases). A player has three singles in five at-bats in the first game, a triple and a single in four at-bats in the second game, and a double and a home ran in five at-bats in the third game.

a. What is his batting average?

b. What is his slugging average?

c. Is it possible for a slugging average to be more than 1? Explain.