Question

in general, the value of a car decreases with age. what could be the correlation between the age and value of all cars? 0.7 -0.7 -1 1

Explanation:

Step1: Understand correlation concept

Positive correlation means variables increase together, negative means one increases as the other decreases.

Step2: Analyze car - age and value

Since car value decreases with age, it's a negative correlation.

Step3: Consider strength of relationship

The relationship isn't perfect (not all cars depreciate at the exact same rate), so it's not - 1.

Answer:

B. -0.7