Unit 2 Vocab, Scatter Plots

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9 Terms

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Correlation
A relationship between two variables
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What do we determine if there’s a relationship?
Strength and fit
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What measures the strength and direction of a relationship between variables whose data points lie on or near a line is called
correlation coefficient
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what variable is it represented by
r
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positive correlation
point that are approximated by a line w a positive slope
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negative slope
point that are approximated by a line w a negative slope
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no correlation
points cannot be well approximated into a line
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correlation
number r satisfying -1
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Lines that best fit/ Lines of regression
lines through or near points on a scatter plot that determine linear representation