Coefficient of correlation.Of two regression lines coincide
Answers
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.
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.