1.

Properties of Binomial Distribution.

Answer»
  • The mean np of the binomial distribution shows the expected number (average) of successes in n Bernoulli trials.
  • The variance of the distribution is = npq. So its standard deviation is = \(\sqrt{npq}\)
  • In the distribution np > npq.
  • Probability of failure q = \(\frac{npq}{np}\)
  • If p < 1/2, skewness of the distribution is positive.
  • If p > 1/2, skewness of the distribution is
    negative.
  • If p = 1/2, skewness of the distribution is zero and it becomes symmetrical distribution.


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