The following diagnostic plots contain data about a class\'s final exam., which

Question

The following diagnostic plots contain data about a class's final exam., which condition(s) or assumption(s) appear(s) to be violated in multiple regression analysis?

A)Equal Variance Assumption.

B) Linearity Assumption.

C) Independence Assumption.

D)Nearly Normal Condition.

E) Randomization Condition

Residuals vs the Fitted Values Response is Final) 20 10 Residualo nts -10 -20 soeo 708090,00 t10 120 130 140 150 Fitted Value Normal Probability Plot of the Residuals (Response is Final) 2 Normal Score 10 0 2O Residuals (points) Histogram of the Residuals (Response is Final) 3 Frequency 2 -20-15-10 -5 O 5 10 15 20 Residuals (points)

Explanation / Answer

From the histogram, it is quite clear that the residuals do not follow normal distribution since the plot doesn't look like bell-shaped hence assumption (D) is violated.
From the residual plot, the non-random pattern indicates that the linearity assumption is violated. Hence, option (B) is violated.

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