Final answer:
The strength and direction of a relationship between two factors are represented by a correlation coefficient. A positive correlation means that the variables move in the same direction, while a negative correlation means that the variables move in opposite directions.
Step-by-step explanation:
The strength and direction of a relationship between two factors are represented by a correlation coefficient. The correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between variables. A positive correlation means that the variables move in the same direction, while a negative correlation means that the variables move in opposite directions.