TS ICET 19 Aug 2021 Shift 2 Paper

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Question : 146 of 200

Marks: +1, -0

There are 12 observations

x_{1}, x_{2}, \....., x_{12}

and

y_{1}, y_{2}, \....., y_{12}

of two variables

{x}, {y}

and

d_{i}=x_{i}-y_{i}

for

1 \≤ i \≤ 12

. If

\∑d_{i}^{2}=65

, then the coefficient of rank correlation is

${7}/{11}$
${7}/{22}$
${17}/{22}$
${17}/{33}$

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