The following questions are in a True / False format. The answers to these questions will frequently depend on remembering facts, understanding of the concepts, and knowing the statistical vocabulary. Before answering these questions, be sure to read them carefully!

1. The value of Pearson's r is always between 0 and 1.

2. If r is close to 1, then the points lie close to a straight line with a positive slope.

3. The slope of the least squares line is the average amount by which y increases as x increases by one unit.

4. If on average y increases as x increases, the correlation coefficient is positive.

5. Pearson's correlation coefficient, r, does not depend on the units of measurement of the two variables.

6. The least squares line passes through the point (x,).

7. The slopes of the least squares lines for predicting y from x, and the least squares lines for predicting x from y are equal.

8. A segmented bar chart is just a rectangular pie chart.