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Question: The formula for the standard error of the estimate for the predictions made with a regression line is



A ) I
B ) II
C ) III
D ) IV

Steps to derive

1 The standard error of the estimate Sest, is the standard deviation of the observed y values about the predicted y′ values.

2 The formula of the standard error of estimate is, Sest = Σ(y-y′)2n-2, where y = observed values, y′ = predicted values and n = number of datasets.



Hence the right answer is Option A

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