---
title: standardDeviation
framework: metrickit
role: symbol
role_heading: Instance Property
path: metrickit/mxaverage/standarddeviation
---

# standardDeviation

The standard deviation of the distribution of values used to calculate the average.

## Declaration

```swift
var standardDeviation: Double { get }
```

## See Also

### Reading the data

- [averageMeasurement](metrickit/mxaverage/averagemeasurement.md)
- [sampleCount](metrickit/mxaverage/samplecount.md)