NORMDIST

The NORMDIST function in Google Sheets is used to calculate the value of the normal distribution function (or normal cumulative distribution function) for a given value, mean, and standard deviation. Whether you're working with statistical data, analyzing probability distributions, or performing risk assessments, the NORMDIST function is a valuable tool. Read on to learn how to apply this function effectively.

Function Syntax and Parameters

Syntax: NORMDIST(x, mean, standard_deviation, cumulative)

Parameters:

• x: The value for which you want to calculate the normal distribution.
• mean: The arithmetic mean of the normal distribution.
• standard_deviation: The standard deviation of the normal distribution.
• cumulative: [Optional] A logical value indicating whether to return the cumulative distribution function (TRUE) or the probability density function (FALSE). The default value is FALSE.

Step-by-Step Tutorial

1. Calculating the normal distribution function:

   • Example: =NORMDIST(2.5, 0, 1, FALSE)
   • Result: 0.006209665

2. Calculating the cumulative distribution function:

   • Example: =NORMDIST(2.5, 0, 1, TRUE)
   • Result: 0.993790335

Use Cases and Scenarios

1. Risk Assessment: Calculate the probability of a certain event occurring based on a normal distribution.
2. Quality Control: Determine the likelihood of a product falling within a specified tolerance range.
3. Financial Analysis: Analyze investment returns based on a normal distribution of historical data.

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