The relationship between the number of gallons of gas left in a gas tank and the number of miles driven has the correlation coefficient r=-0.91

Question

Select all terms that describe this relationship.
A. Positive
B. Negative.
C. Strong.
D. Weak.
E. morderatley strong

Answer 1

The correlation coefficient \( r = -0.91 \) indicates that there is a negative relationship that is also strong. Based on this information, the appropriate descriptors for the relationship are:

• B. Negative.
• C. Strong.
• E. Moderately strong.

However, given that the correlation is very close to -1, it leans more towards being described as strong rather than moderately strong. Thus, the most accurate choices would be B and C.