Which is true of the correlation r

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Reference no: EM132012147

Question - Correlation

Which of the following is true of the correlation r?

(a) It cannot be greater than 1 or less than -1.

(b) It measures the strength of the straight-line relationship between two quantitative variables.

(c) A correlation of +1 or -1 can only happen if there is a perfect straight-line relationship between two quantitative variables.

(d) All of the above.

Reference no: EM132012147

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