Unformatted text preview: variable is positive or negative. b. If one variable goes up and the other goes down, you know you have a negative relationship. 2. ?? 2 reasons why r might not be a useful statistic: 1. Outliers 2. The data is not linear Why do we use standard units?-For correlation coefficient-It actually means standard deviation units o We want to know the spread of one variable is compared with the spread of the other variable, and if theyre correlated than we can see how it makes a line.-Most of the times, the units are completely different so we need to convert it to a unit where you can see a relationship between the 2. EXAM JEOPARDY *see notebook...
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This note was uploaded on 11/10/2011 for the course SOC 110 taught by Professor Latouche during the Fall '11 term at Indiana.
- Fall '11