NEGBINOMDIST

Calculates the probability of getting 'x' failures before reaching the r th success for independent trials with the probability of success 'p'.

Syntax

NEGBINOMDIST(x; r; p)

x: The number of failures to obtain probability for. Eg., 10

r: The number of successes to take. Eg., 15

p: The probability of success.Eg., 0.18

Examples

Formula	Result
=NEGBINOMDIST(A2;B2;C2)	0.000001819
=NEGBINOMDIST(A3;B3;C3)	0.007981276
=NEGBINOMDIST(A4;B4;C4)	0.013885498

Get a hands-on experience of the function in the embedded range below.

Possible Errors

Errors	Meaning
#N/A!	The function could not find the value it was asked to look for. Commonly occurs in VLOOKUP and similar functions.
#NAME!	The function name is incorrect or invalid. The given defined name (if any) is invalid. There is a typo in the defined name used in the function. Double quotes are missing for text values in the function. Colon missing in a cell range reference.
#VALUE!	The given argument's data type is incorrect or invalid. For example, the function =DATE(A1:A3) will return a #VALUE error when a text value is present in the range.
#REF!	The given cell reference is incorrect or invalid. This error may occur when a cell/range has been deleted, moved, or pasted over.
#NUM!	The value of p is not between 0 and 1. The value of x is less than 0. The value of r is less than 1.

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