which r - value represents the strongest negative correlation? - 0.7 - 0.22 0.38 0.9

Explanation:

Step1: Recall the property of correlation coefficient (r)

The correlation coefficient (r) ranges from (- 1) to (1). A negative (r) - value indicates a negative correlation. The closer (|r|) is to (1), the stronger the correlation.

Step2: Calculate the absolute values of the given (r) - values

For (r=-0.7), (|r| = 0.7). For (r=-0.22), (|r|=0.22). For (r = 0.38), (|r|=0.38) (this is a positive correlation, so we are not interested in it for a negative correlation comparison). For (r = 0.9), (|r|=0.9) (this is a positive correlation, so we are not interested in it for a negative correlation comparison). Since we are looking for the strongest negative correlation (negative (r) - value with the largest absolute value among negative (r) - values), and (0.7>0.22).

Answer:

(-0.7)