3. Consider each of the regression error plots below. (a) (b) (c) 1 432 For plot (a). Is the assumption of linearity appropriate? YES or NO (circle one) and justify your answer: For plot (a). Is the assumption of homoscedasticity appropriate? YES or NO (circle one) and justify your answer: For plot (b). Is the assumption of linearity appropriate? YES or NO (circle one) and justify your answer: For plot (b). Is the assumption of homoscedasticity appropriate? YES or NO (circle one) and justify your answer: For plot (o), Is the assumption of linearity appropriate? YES or NO (circle one) and justify your answer: For plot (o), Is the assumption of homoscedasticity appropriate? YES or NO (circle one) and justify your