Applied maths chapter 4

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5 Terms

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what is bivariate data
data with pairs of values for two variables (x,y dependent,independent)
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properties of correlation
positive/negative and strength
3
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the regression line of y on x is written as…
y = a + bx

b tells you the change in y for each unit change in x
4
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when would you use the regression line to make predictions
only when predicting the dependent variable

only when within the range of the given data (interpolate don’t extrapolate)
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