How will r be affected by decreasing the range of values of variable X?
A)The value of r will increase.
B)The value of r will decrease.
C)The value of r will either increase or decrease depending on the value of the cross products.
D)The value of r will be unaffected.

Question

Quizplus · Accepted Answer

The strength of correlation between two variables is affected by the spread of their values. Decreasing the range of values of variable X means that the spread of the values is reduced. This can lead to a reduction in the strength of the relationship between X and Y, resulting in a decrease in the value of r.

How Will R Be Affected by Decreasing the Range of Values