The value of Spearman's rank coefficient lies between

2

and

3

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1

and

2

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0

and

1

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- 1

and

1

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Solution

The correct option is D $- 1$ and $1$
Spearman's rank cofficient : $R = 1 - \frac{6 \sum d_{i}^{2}}{n (n^{2} - 1)}$
Its values lies between $- 1$ and $1$
So option $D$ is correct.

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Q. Two judges in a beauty competition rank the 12 entries as follows:

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Q. The real number k for which the equation,

2 x^{3} + 3 x + k = 0

has two distinct real roots in [0, 1]

Q. Prove that coefficient of correlation lies between

- 1

and

1

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The value of Spearman's rank coefficient lies between

The correct option is D −1 and 1Spearman's rank cofficient : R=1−6∑d2in(n2−1)Its values lies between −1 and 1So option D is correct.

The correct option is D $- 1$ and $1$
Spearman's rank cofficient : $R = 1 - \frac{6 \sum d_{i}^{2}}{n (n^{2} - 1)}$
Its values lies between $- 1$ and $1$
So option $D$ is correct.