Question

: when there is perfect relationship between variables then the correlation value is:
1. 1
2. 0
3. 3
4. 2​

Answer 1

$\underline{\bf \bold{ \: Answer \:}}$

• When there is perfect relationship between variables, then the correlation value is 1.

Basic Concept :-

What is correlation Coefficient?

Correlation Coefficient is a statistical concept, which helps in establishing a relationship between predicted and actual values obtained in a statistical experiment.

The calculated value of the correlation coefficient explains the exactness between the predicted and actual values.

The numerical value of correlation of coefficient will be in between -1 to + 1. It is known as real number value.

The negative value of coefficient suggests that the correlation is strong and negative.

When ‘r’ approaches to the side of + 1, then it means the relationship is strong and positive.

The weak correlation is signaled when the coefficient of correlation (r) approaches to zero.