2
QuizMultiple Choice

Drawing Trend Lines

Question 2 • Pre-Algebra B

A scatterplot has a positive, linear correlation. Which statement is true about the relationship between the x- and y-values?

Answer
A
As the x-values increase, the y-values tend to increase.
B
As the x-values increase, the y-values tend to decrease.
C
As the x-values decrease, the y-values tend to increase.
D
As the x-values decrease, the y-values tend to vary randomly.

Explanation

A positive linear correlation means the two variables tend to move in the same direction. Therefore, as the x-values increase, the y-values tend to increase, which is choice A.

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