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Custom Golf Clubmaker

Real-Life Activities

Real-Life Math

Developing math skills is essential for people who make customized golf clubs. "Math plays a big part in building golf clubs," says David Daniello. "You use math to calculate club length, overall weight and swing weight [the weight of 1 end of the club in relation to the other]. I use math with every club I build."

You are a custom golf clubmaker who owns and operates your own company. A group of 10 golfing buddies has just hired you to make each of them a set of golf clubs.

Before you can start making the clubs, you have to decide what types of clubs each man should have. A standard set of golf clubs includes 3 woods and 8 irons. Balls hit by wood clubs tend to travel farther than when the irons are used.

The number on the club also plays a role. For example, a ball hit with a number 3 iron will travel farther than one hit with a number 4 iron.

You believe that each player should have a set of clubs that reflects his playing ability. For example, beginning players who can't hit the ball as hard should have more woods and fewer irons in their bag. You've created a table to decide what combination of clubs each player should have:

Average ScoreType of Golf Set
72 to 853/8 (3 woods and 8 irons)
86 to 994/6 (4 woods and 6 irons)
100 to 1155/4 (5 woods and 4 irons)
116 or more6/4 (6 woods and 4 irons)

You ask the men what they think is their average. Seven of the men tell you immediately. However, the other 3 are unsure. Two are beginners, and have only played a total of 6 times. The other one has had very mixed results this season.

Fortunately, the private golf course they've joined keeps an official record. The following week, each man brings you the scores from his last 6 games. You will calculate the average of the 6 scores, and use this number to decide what combination of clubs each man should have.

Here are their scores for the last 6 games:

Customer Number 1: 130, 114, 126, 119, 135, 122
Customer Number 2: 120, 113, 125, 118, 117, 120
Customer Number 3: 119, 88, 102, 123, 95, 101