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If the mean, mode and S.D. of a frequency distribution are 41, 45 and 8 respectively, then its Pearson's coefficient of skewness is

Options

  1. A( 1 3 )
  2. B( -1 2 )
  3. C( 2 3 )
  4. D1

Correct answer

B. ( -1 2 )

Step-by-step solution

(- 1 2 ), We have ( S _ K = Mean - Mode S . D . ) ( 41-45 8 =- 1 2 )

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