If regression model is given as y = 63.3 + 0.51x, give an estimate of y when x = 20. Group of answer choices73.570.565.268.7 PreviousNext
Question
Solution 1
To estimate y when x = 20 in the regression model y = 63.3 + 0.51x, you simply substitute x with 20 in the equation.
Step 1: Substitute x with 20 in the equation y = 63.3 + 0.51*20
Step 2: Multiply 0.51 by 20 0.51 * 20 = 10.2
Step 3: Add 63.3 to the result from step 2 y = 63.3 + 10.2 = 73.5
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