Answer:
A positive correlation
Explanation:
Research finds that the more frequently you brush your teeth, the less likely you are to develop cavities that will need to be filled. This relationship between variables depicts a positive correlation.
Correlation is a statistical measure that indicates the extent to which two or more variables are related. There are two types of correlation; positive and negative correlation. A positive correlation indicates the extent to which those variables increase or decrease in parallel; a negative correlation indicates the extent to which one variable increases as the other decreases.
There is a positive correlation between frequency of brushing and cavity health. The more the frequency of brushing, the healthier the tooth cavity becomes.