Example 1: page 161 #5 Example 2: page 160 #1 Explanatory Variable - Response Variable - independent variable dependent variable.

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Presentation transcript:

Example 1: page 161 #5

Example 2: page 160 #1 Explanatory Variable - Response Variable - independent variable dependent variable

Correlation coefficient - r Measures the strength and direction of the linear relationship between quantitative variables. Strength + r = positive correlation - r = negative correlation Direction strong moderate weak

Recipe for r There is a _(strength)___, ___(direction)____, linear relationship between __(explanatory)__ and __(response)__. Let’s use the formula to find r. This will be the only time we do it by hand. After today we will find it using on the calculator.

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