Correlation: The Cheeseburger

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Correlation, the last time I heard this word it was during a math lecture, but the definitions are still very similar. Stated in the text, correlation(association) is the simultaneous variation in

two variables. The book uses a great example in explaining that when people have an higher income they tend to lead a healthier life. This isn 't always true, but it makes sense. For

myself, and like most people my age we have a limited income and it is cheaper to by hamburger than chicken. And very often we are eating on the go and it is a lot cheaper to buy a

cheese burger at McDonald 's instead of a salad. It is very hard to eat a salad while driving, so in more ways than one, a cheeseburger is the easiest choice. We also may not have