Final answer:
A strong negative correlation in a scatterplot is represented by a downward sloping line where as one variable increases, the other variable decreases.
Step-by-step explanation:
In a scatterplot, a strong negative correlation between two variables X and Y would look like a downward sloping line. As the values of variable X increase, the values of variable Y decrease. The points on the scatterplot would be closely clustered around the line.
For example, if X represents the number of hours spent studying and Y represents the test scores, a strong negative correlation would indicate that as the number of hours studying increases, the test scores decrease.
The correlation coefficient, denoted by 'r', would be close to -1 in this case.