# Manuals/calci/NORMSINV

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NORMSINV (Probability)

• is the value of the Probability.
• NORMSINV(),returns the inverse of the standard normal cumulative distribution.

## Description

• This function gives the inverse of the Standard Normal Cumulative Distribution.
• In Normal Distribution formula, when the Mean is zero and the Standard Deviation is 1 then it is called Standard Normal Distribution.
• If , then .
• using the iterating method to find the value of .
• Suppose the iteration has not converged after 100 searches, then the function gives the error result.
• In , where is the probability value of the Standard Normal Cumulative Distribution.
• This function will return the result as error when
```1.Probability is non-numeric.
2.Probability<0 or Probability>1.
```

## Examples

1. =NORMSINV(0.9999975333) = 4.567600
2. =NORMSINV(0.00241) = -2.818823592
3. =NORMSINV(1) = #N/A (PROBABILITY >0 (OR) PROBABILITY < 1)
4. =NORMSINV(0.00001) = -4.264890794

NORMSINV