Documentation/How Tos/Calc: B function

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B

Calculates probabilities for a binomial distribution.

Syntax:

B(n; p; k; k2)

With n independent trials, each with a probability p of success, B returns the probability that the number of successes will be between k and k2 inclusive, or if k2 is omitted the probability that the number of successes will be exactly k.
The probability is calculated as:
Calc b equation.png (where k2 = k if k2 is omitted).

Example:

B(10; 1/6; 2)

returns approximately 0.29 (29%), the probability that the number four will be thrown exactly twice in 10 throws of a die.

Issues:

  • Excel does not have this function.


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