Which correlation coefficient would indicate a strong negative relationship between the number of text messages sent and the age of the sender?

A) - 0.95

B) - 0.82

C) 0.05

D) 0.28

Question

Mathematics

Rex Hooper

12 December, 14:00

Which correlation coefficient would indicate a strong negative relationship between the number of text messages sent and the age of the sender?

A) - 0.95

B) - 0.82

C) 0.05

D) 0.28

+4

Answers (2)

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Joey · Answer 1

Answer: A) - 0.95

The closer the value of r is to either - 1 or + 1 means that we have very strong correlation. In this case, r = - 0.95 is closest to - 1 compared to the other values. Also, no other value is really close to + 1, so we can ignore it.

With r = - 0.95 very close to - 1, it means that there's a strong negative correlation. The higher the age, the less number of text messages the person sends. As age (x) goes up, the number of text messages (y) goes down.

Which correlation coefficient would indicate a strong negative relationship between the number of text messages sent and the age of the sender?A) - 0.95B) - 0.82C) 0.05D) 0.28

Which correlation coefficient would indicate a strong negative relationship between the number of text messages sent and the age of the sender?

A) - 0.95

B) - 0.82

C) 0.05

D) 0.28