Question

which correlation is most likely to describe the relationship between brushing ones teeth and the number of cavities one gets?
-0.62
.83
-0.08
.45

Explanation:

Step1: Understand correlation concept

A negative correlation means as one variable increases, the other decreases. Brushing teeth more should lead to fewer cavities, so we expect a negative correlation. The closer the correlation coefficient is to - 1 or 1, the stronger the relationship.

Step2: Analyze options

• Option -0.62 is a moderate - strong negative correlation.
• Option 0.83 is a positive correlation which is incorrect as the relationship should be negative.
• Option - 0.08 is a very weak negative correlation.
• Option 0.45 is a positive correlation which is incorrect.

Answer:

-.62