Which of the following are true (more than one answer may be possible)? r has th

Question

Which of the following are true (more than one answer may be possible)? r has the same sign (positive or negative) as the slope of the regression line. r is the slope of the regression line. One should create a scatterplot to verify that the linear model is appropriate. The intercept of the regression line gives the predicted y value when the x value is 0. Which of the following are true(more than one answer may be possible)? Whenever including a lurking variable causes us to rethink the direction of an association, this is called Simpson's paradox. In a study involving the association between playing video games and driving skills, age may be a lurking variable. lf r is very close to 1 or -1 it is ok to extrapolate the model to values outside the data set. if r is very close to 1 or -1 and there are no outliers and the scatterplot looks linear, one should conclude that the explanatory variable causes the change in the response variable

Explanation / Answer

For Ques 4:

D is correct

C is correct

for Ques 5 :

A is correct

B is correct

D is correct

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.