E2. Do folks who come from bigger families have more children? Examine the relationship between respondent’s number of siblings (SIBS) and number of children (CHILDS) respondent has.

1. What is the independent variable? The dependent variable?

2. Write out the regression equation predicting CHILDS with SIBS.

3. Using the regression equation, if someone has three siblings, how many children are they predicted to have?

4. Identify and interpret the value of the coefficient of determination.

5. Identify and interpret the value of the correlation coefficient.

6. Create a scatter diagram of SIBS and CHILDS. Impose a regression line on your visual.