Question

Define 2 different measures of correlation of 2 data sets to each other.

Answer 1

CORRELATION IS AN ANLAYSIS WHICH MEASURE THE STRENGTH OF ASSOSCIATION BETWEEN TWO VARIABLES AND THE DIRECTION OF RELATIONSHIP

generally CORRELATION is masured by four types of correlations.they are::-

pearson correlation ,spearman correlation,point biserial correlation,kendall rank correlation.

PEARSON CORRELATION::-

Pearson r connection is the most broadly utilized connection measurement to quantify the level of the connection between straightly related factors.

For instance, in money markets, in the event that we need to gauge how two stocks are identified with one another,

Pearson r connection is utilized to quantify the level of connection between the two.

The point-biserial relationship is directed with the Pearson connection recipe aside from that one of the factors is dichotomous.

KENDALL RANK CORRELATION::-

Kendall rank connection is a non-parametric test that estimates the quality of reliance between two factors.

In the event that we think about two examples, an and b, where each example measure is n, we realize that the aggregate number of pairings with a b is n(n-1)/2.

The accompanying recipe is utilized to compute the estimation of Kendall rank relationship.

SPEARMAN RANK CORRELATION::-

Spearman rank relationship is a non-parametric test that is utilized to quantify the level of relationship between two factors.

The Spearman rank connection test does not convey any suppositions about the dissemination of the information and is the proper relationship investigation when the factors are estimated on a scale that is in any event ordinal.