Unit 3 Test Review: Vocab, T/F

Front

Explanatory variable: Height of a plant or days since planted?

Back

Days since planted.

Front

Explanatory variable: # of combos purchased at McDonald's / # of pets in a household

Back

Neither, it is not appropriate for these variables.

Front

Response variable: Time on treadmill & calories burned

Back

number of calories burned

Front

Association with r = -.16

Back

Weak Negative

Front

Association with r = .91

Back

Very Strong Positive

Front

Association with r = -.76

Back

Moderately Strong Negative

Front

Association with r = 1.72?

Back

Cannot be a correct correlation coefficient

Front

r indicates the strength of a linear relationship.

Back

True

Front

r indicates the direction of a linear relationship.

Back

True

Front

r can only be calculated for graphs with 2 numerical variables.

Back

True