1.

State the circumstances in which Karl Pearson’s formula j = 3\((\frac{\bar x−M}{s})\) is used to find coefficient of skewness.

Answer»

Under the following circumstances in which Karl Pearson’s formula j = 3\((\frac{\bar x−M}{s})\) is used to find coefficient of skewness :

  • When the frequency distribution is bimodal.
  • When the frequency distribution is of unequal class length.
  • When the frequency distribution is of mixed type of discrete and continuous distribution.


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