Question

Calculate Karl pearson

Answer 1

Step-by-step explanation:

r= cov(x,y)/sx×sy

cov(x,y)=summation xi×yi/n_x^×y^

summation xi×yi/n =12867/8 = 1608.375

x^×y^ = 1560.40625

cov(x,y) = 1608.374_ 1560.40625 = 47.96875

sx = square root of summation xi^2/n_(x^)2

=square root of ( 1471.625_1396.890)

=square root of(74.735)

=8.6449

sy = square root of summation yi^2/n_(y^2)

= square root of (1788.75_1743.0625)

=square root of (45.6875)

=6.7592

sx×sy = 58.43260808

r = 47.96875/58.43260808

=0.82