Question

question 21 of 25
which of the following is not a possible r - value?
a. - 0.3
b. 0.3
c. 0.6
d. - 1.6

Explanation:

Step1: Recall the range of r - value

The correlation coefficient \(r\) has a range of \(- 1\leqslant r\leqslant1\).

Step2: Check each option

• Option A: \(-0.3\) satisfies \(-1\leqslant - 0.3\leqslant1\).
• Option B: \(0.3\) satisfies \(-1\leqslant0.3\leqslant1\).
• Option C: \(0.6\) satisfies \(-1\leqslant0.6\leqslant1\).
• Option D: \(-1.6\) does not satisfy \(-1\leqslant r\leqslant1\) since \(-1.6<-1\).

Answer:

D. \(-1.6\)