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Question

If the lines of regression coincide, then the value of the correlation coefficient is:


A

0

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B

1

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C

0.5

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D

0.33

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Solution

The correct option is B

1


Explanation for the correct option:

If the two lines of regression coincide, then the value of their coefficient correlation will be 1 or -1.

When the coefficient of correlation is perfectly negative or positive that means the two regression lines will be coinciding.

Amongst the given options, -1 isn't available.

So, correlation coefficient is 1.

Hence, option (B) 1, is the correct answer.


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