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The set of bivariate observation (x(1),y...

The set of bivariate observation `(x_(1),y_(1)),(x_(2),y_(2)),…..(xn,yn)` are such that all the values are distinct and all the observation fall on a straight line with non-zero slope. Then the possible values of the correlation coefficient between x and y are

A

0 and 1 only

B

0 and `-1` only

C

0, 1 and `-1`

D

`-1` and 1 only

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The correct Answer is:
D
By definition.
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