Math, asked by prerna5797, 10 months ago

Coefficient of correlation.Of two regression lines coincide

Answers

Answered by sayampradhan77
13

Answer:

The two lines of regression coincide i.e. become identical when r = –1 or 1 or in other words, there is a perfect negative or positive correlation between the two variables under discussion. (v) The two lines of regression are perpendicular to each other when r = 0.

Answered by varindagarg812
1

Answer:

Concept:

A correlation coefficient is a numerical measure of a statistical association between two variables. Two columns of a given set of data of observations, referred to as a sample, or two aspects of a multidimensional random variable with a known distribution can be used as variables.

Given:

Correlation coefficient. Two regression lines cross each other.

Find:

we have to find the Coefficient of correlation.Of two regression lines coincide.

Answer:

The two regression lines cross each other perpendicularly.

r = The two regression lines overlap when the coefficient of correlation is perfectly positive or negative.

As a result, the answer will be either 1 or -1.

If the regression lines are parallel, the correlation coefficient is either

1 or -1.

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