Real world math Favre completions to attempts.

For my test i took Brett Favre's stats for completions to attempts from 1992 to 2009.

The linear regression equation came out to be y=.37x+135.2 The correlation coefficient is .71. For every 135.2 throws Favre's completion rise by .37 catches. Using scatter plots and being able to use this kind of information is very important. People use this kind of analyzing data to figure what possible completions would be for the next season. I'm sure vegas uses this kind of technique for the odds for teams to win the Superbowl the next year on a larger more challenging scale. Using the scatter plots is a easier less accurate way of predicting the stats or info for the next year or next set of data.

Math uses

There are many uses for our functions in the real world.

The square root of X function is used every day in engineering. When a engineer needs to find the hypotenuse of a triangle they would use the pathagorean theorem to find the missing side of the triangle. http://answers.yahoo.com/question/index?qid=20080929204029AA1e7be&vm=r

We encounter parabolas in everyday life. If you throw a football you can map out a parabola in the air. The football starts at your arm height and then throw it at a angle up for distance as it falls it causes a ark called the parabola.

http://acrospire.pbworks.com/C1+model+real-world+phenomena+using+quadratic+functions

the most common function people encounter in everyday life is a basic line. now the line can take many forms from a simple fence post or something. woodworkers use a line when measuring a piece of wood to build a cabinet. the line must be strait and even.