A history instructor has given the same pretest and the same final examination e

Question

A history instructor has given the same pretest and the same final examination each semester. is interested in determining if there is a relationship between the scores of the two tests. He computes the linear correlation coefficient and notes that it is 1.15. What does this correlation coefficient value tell the instructor? A. There is a strong positive correlation between the tests. B. The correlation is something other than linear. C. The history instructor has made a computational error. D. There is a strong negative correlation between the tests.

Explanation / Answer

Ans: Option C ( since corelation coefficient value is always lies between -1 and 1)

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