GPSSB Statistical Assistant Exam Paper (04-11-2018) / 2

r=1-[∑d²/n(n²+1)]

r = ∑xy/√(∑x²)(∑y²)

r=1-[∑d²/n(n²-1)]

r=1-[6•∑d²/n(n+1)(n-1)]

138

217

169

210

0.72

0.32

0.46

0.14

many, few

few, few

little, few

little, much

1/5

5/18

5/6

1/12

head and feet

hand and foot

hand and head

eye and ear