Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
5. Analyzing Lines of Fit
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Exercise 23 Page 197

Do people with larger heads wear hats more often than people with smaller heads? Less often?

No correlation likely

Practice makes perfect

A correlation is a relationship between data sets. We want to know if it is likely that there is a correlation between how many hats a person owns and the size of that person's head. Let's explore what a positive correlation between these two would lead to.

A positive correlation sounds unlikely. A negative correlation, on the other hand, would imply that a person with a large head typically owns few hats. This also sounds unlikely. This means that correlation between the number of hats a person owns and the size of their head is unlikely.