Multiple choices

1. A correlation coefficient of +0.66 would be interpreted as a:

Group of answer choices

a. moderate direct association.

b. very weak association.

c. moderate inverse association.

d. strong direct association.

2. A correlation coefficient of -0.5 would be interpreted as a:

Group of answer choices

a. very weak association.

b. strong inverse association.

c. moderate inverse association.

d. weak direct association.

3. Pearson'sr doesnot necessarily measure:

Group of answer choices

the strength of association between two variables.

causation of the association between two variables.

the direction of association between two variables.

4. A scatter-plot with a pattern extending downward to the right depicts what type of association?

Group of answer choices

a. Direct

b. Negative

c. Positive

5. The "line of best fit" can also be referred to as the:

Group of answer choices

equal squares line.

least squares line.

scattered squares line.

most squares line.