What is the standard deviation of the residuals?
A regression of the number of cases of a particular disease per 1000 people based on the number of people vaccinated against it as children (per 1000) is performed on data collected from 34 cities. The results are summarized below:
Intercept .914
Slope -.001
The standard deviation of the residuals is equal to the square root of the residual mean square:
sqrt(0.027) = 0.164
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