Question

10. Find the association between intelligence of fathers and the intelligence
of sons from the following data:
Intelligent fathers with intelligent sons: 50
Dull Sathers with intelligent sons
: 100
Dull fathers with dull sons
: 300
Intelligent fathers with dull sons
: 200
​

Answer 1

Explanation:

Let A denote the intelligence of father’s and B denote the intelligence of Son’s

Then, we know that

Yules’s co-efficient of association is

Q=

(AB).(αβ)+(Aβ).(αβ)

(AB).(αβ)−(Aβ).(αβ)

=

50×300+200×100

50×300−200×100

=

15000+20000

15000−20000

=

35000

−5000

=−

7

1

=−0.428