Question

of watson’s billiards tournament
10
8
number of games
6
4
2
0
0-3 4-7 8-11 12-15
number of balls made
how many more games had 12 to 15 balls made than 4 to 7 balls made?
games

Explanation:

Step1: Find games with 12 - 15 balls

From the bar graph, the number of games with 12 - 15 balls made is 7 (assuming the bar for 12 - 15 reaches up to 7, and 4 - 7 reaches up to 1). Wait, actually, looking at the graph: the bar for 4 - 7 is at 1, and 12 - 15 is at 7? Wait, no, let's check again. Wait, the y - axis is number of games. The bar for 4 - 7: let's see the grid. The first bar (0 - 3) is 0, 4 - 7 is 1 (since it's between 0 and 2, closer to 1), 8 - 11 is 4, 12 - 15 is 7? Wait, no, maybe the 12 - 15 bar is at 7? Wait, no, the problem: we need to find the number of games for 12 - 15 and 4 - 7. Let's assume from the graph: number of games with 12 - 15 balls made is 7, and with 4 - 7 is 1. Wait, no, maybe the 12 - 15 bar is 7? Wait, no, let's look at the y - axis. The y - axis has 0, 2, 4, 6, 8, 10. The bar for 4 - 7: let's say it's 1 (since it's above 0, below 2). The bar for 12 - 15: let's say it's 7 (since it's between 6 and 8, closer to 7? Wait, no, the bar for 12 - 15 is up to 7? Wait, maybe the 12 - 15 bar is 7, and 4 - 7 is 1. Then the difference is 7 - 1 = 6? Wait, no, maybe I misread. Wait, the bar for 8 - 11 is 4, 12 - 15 is 7? Wait, no, the bar for 12 - 15: let's count the grid lines. From 0 to 2 is 2 units, 2 to 4 is another 2, 4 to 6 is another 2, 6 to 8 is another 2. The bar for 12 - 15 is at 7? Wait, no, maybe the 12 - 15 bar is 7, and 4 - 7 is 1. So 7 - 1 = 6. Wait, maybe the 4 - 7 bar is 1, 12 - 15 is 7. So 7 - 1 = 6.
Wait, let's re - examine. The graph:

• 0 - 3: 0 games
• 4 - 7: 1 game (the bar is at 1)
• 8 - 11: 4 games (the bar is at 4)
• 12 - 15: 7 games (the bar is at 7)

So to find how many more games had 12 - 15 balls made than 4 - 7, we subtract the number of games with 4 - 7 balls from the number with 12 - 15 balls.

Step2: Calculate the difference

Number of games with 12 - 15 balls: 7
Number of games with 4 - 7 balls: 1
Difference = 7 - 1 = 6

Answer:

6