# Calculate the variance of a Net Promoter Score

### Description

This function calculates the Net Promoter Score variance, taking a `vector`

of length three, with numbers or proportions of *Detractors*, *Passives*, and *Promoters*, respectively.

### Usage

1 | ```
npvar(x)
``` |

### Arguments

`x` |
A |

### Value

`numeric`

. The variance of the distribution, ranging from 0 to 1.

### Author(s)

Brendan Rocks rocks.brendan@gmail.com

### See Also

`nps.var`

, a version which works on raw Recommend responses

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