NORMDIST(x, mean, standard_dev, cumulative) |
Returns the probability of getting less than or equal to a particular value in a normal distribution. |
x | The number from the distribution. |
mean | The arithmetic mean of the distribution. |
standard_dev | The standard deviation of the distribution. |
cumulative | The type of function to use: True = cumulative probability function (less than) False = probability density function (equal to) |
Remarks |
* NORM.DIST was added in Excel 2010 to replace this function. * The normal distribution is a continuous distribution. * If "x" is not numeric, then #VALUE! is returned. * If "mean" is not numeric, then #VALUE! is returned. * If "standard_dev" = 0, then #NUM! is returned. * If "standard_dev" is not numeric, then #VALUE! is returned. * If "cumulative" = True, then the area under the curve to the left of "x" is returned. This uses the cumulative distribution function. * If "cumulative" = False, then the height of the curve at "x" is returned. This uses the probability density function. * Example - If "mean" = 0 and "standard_dev" = 1 this function is equivalent to the standard normal distribution. * In Excel 2010 the accuracy of this function was improved - https://support.microsoft.com/en-us/help/827371/description-of-the-normdist-function-in-excel * For the Microsoft documentation refer to support.office.com |
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