Flashcards: MCAT Physics and Math 12.7: Applying Data

Correlation refers to a connection—direct relationship, inverse relationship, or otherwise—between data.

If two variables trend in opposite directions (one increases as the other decreases) there is a negative correlation.

If two variables trend together, that is as one increases so does the other, there is a positive correlation.

Relationships can be quantified with a correlation coefficient, a number between –1 and +1 that represents the strength of the relationship. A correlation coefficient of +1 indicates a strong positive relationship, a value of –1 indicates a strong negative relationship, and a value of zero indicates no apparent relationship. 

imply causation

temporality