BINOM.DIST(number_s, trials, probability_s, cumulative)

Returns the probability distribution function OR the cumulative distribution function for a binomial distribution.

number_sThe number of successes out of the trials.
trialsThe number of independent trials.
probability_sThe probability of a success on each trial.
cumulativeA logical value indicating the type of function to use:
False = probability distribution function (equal to)
True = cumulative probability function (equal to or less than)

* This function was added in Excel 2010 to replace the BINOMDIST function.
* The binomial distribution is a discrete distribution
* If "cumulative" = False / 0, then the height of the bell shaped curve at "x" is returned. This uses the probability mass function
* If "cumulative" = True / 1, then the area under the curve to the left of "x" is returned. This uses the cumulative probability function
* All the values are greater than zero.
* You can use the BINOM.INV function to return the inverse of the probability distribution function for a binomial distribution.
* For the Microsoft documentation refer to

1=BINOM.DIST(1,6,0.5,FALSE) = 9.38%
2=BINOM.DIST(2,6,0.5,FALSE) = 23.44%
3=BINOM.DIST(3,6,0.5,FALSE) = 31.25%
4=BINOM.DIST(4,6,0.5,FALSE) = 23.44%
5=BINOM.DIST(5,6,0.5,FALSE) = 9.38%
6=BINOM.DIST(6,6,0.5,FALSE) = 1.56%
7=BINOM.DIST(1,6,0.5,TRUE) = 10.94%
8=BINOM.DIST(2,6,0.5,TRUE) = 34.38%
9=BINOM.DIST(3,6,0.5,TRUE) = 65.63%
10=BINOM.DIST(4,6,0.5,TRUE) = 89.06%
11=BINOM.DIST(5,6,0.5,TRUE) = 98.44%
12=BINOM.DIST(6,6,0.5,TRUE) = 100.00%
13=BINOM.DIST(6,10,-0.5,FALSE) = #NUM!
14=BINOM.DIST(6,"some text",0.5,FALSE) = #VALUE!

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