External module "stats/base/dists/binomial/variance/docs/types/index.d"

variance

• variance(n: number, p: number): number

• Returns the variance of a binomial distribution.

  Notes

  • If provided a number of trials n which is not a nonnegative integer, the function returns NaN.
  • If p < 0 or p > 1, the function returns NaN.

  Parameters

  • n: number

    number of trials

  • p: number

    success probability

  Returns number

  variance

  Example

  var v = variance( 100, 0.1 );
  // returns 9.0

  Example

  var v = variance( 20, 0.5 );
  // returns 5.0

  Example

  var v = variance( 10.3, 0.5 );
  // returns NaN

  Example

  var v = variance( 20, 1.1 );
  // returns NaN

  Example

  var v = variance( 20, NaN );
  // returns NaN