Given the equation of a regression line is y = -2.5x+ 5.3, what is the best predicted value for y given x = 4.9? Assume that the variables x and y have a significant correlation.
A)-6.95
B)-17.55
C)17.55
D)6.95

Question

Quizplus · Accepted Answer

To find the predicted value of y given x = 4.9, substitute x = 4.9 into the equation y = -2.5x + 5.3. This gives y = -2.5(4.9) + 5.3 = -12.25 + 5.3 = -6.95.

Given the Equation of a Regression Line Is Y =