17
QuizMultiple Choice

Solving Quadratic Equations: Quadratic Formula — Unit test

Question 17 • FL-1200700-Mathematics for College Algebra MIS

Which best describes the strength of the model with an r-value of –0.93?

Answer
A
a weak positive correlation
B
a strong positive correlation
C
a weak negative correlation
D
a strong negative correlation

Explanation

The magnitude of the correlation coefficient, |−0.93| = 0.93, is close to 1, so the relationship is strong. The negative sign means the variables tend to move in opposite directions. Therefore, the model has a strong negative correlation.

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