Which of the following is not a requirement for regression analysis? choose the correct answer below. a. outliers can have a strong effect on the regression equation, so remove any outliers if they are known to be errors. b. visual examination of the scatterplot shows that the points approximate a straight-line pattern. c. the sample of paired (x, y) data is a random sample of quantitative data. d. the method for regression analysis line is not robust. it is seriously affected by a small departure from a normal distribution.

Option D is correct.

Step-by-step explanation:

Regression analysis determines the relationship between 2 or more variables by examining the influence of independent variables on a dependent variable.

Few requirements for  regression analysis are like - quantitative data condition, the outlier condition, error independence etc.

The following is not a requirement for regression analysis:

D:The method for regression analysis line is not robust. It is seriously affected by a small departure from a normal distribution.

what are the statements

step-by-step explanation:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option