TS ICET 23 May 2018 Shift 2 Paper

Question : 146 of 200

Marks: +1, -0

Two spoils persons P and Q have participated in four competitions and theirrespective ranks are as give in the table below. The rank correlation coefficientis

\table,\I,\II,\III,\IV;\P,3,4,1,5;\Q,2,5,4,3

$1/3$
$-1/3$
$1/2$
$-1/2$

Validate

Solution:

$R_P$	$R_Q$	d	$d^2$
3	2	1	1
4	5	–1	1
1	4	–3	9
5	3	2	4
		$∑d^2=15$

ρ=1-{6 ∑ d ^{2}}/{ n ( n ^{2}-1)}

=1-{6 × 15}/{4 ×(4^{2}-1)}=1-3/2

=-1{/}2

Go to Question:

Prev Question

Next Question