Question

Formula karl pearson coefficient correlation

Answer 1

correlation coefficient formula are used to find how strong a relationship is between data.
the formulqas return a value between -1 and 1,where 1 indicates a strong positive relationship
-1 indicates aq strong negative relationship
A result of zero indicates no relationship at all

Answer 2

Answer:

r = Σxy ÷ √Σx² × Σy²