Given a particular cutoff (`x`

), what is the variance of the new truncated normal?

1 |

`cutoff` |
The cutoff value for the truncated normal |

`truncMean` |
The mean of the truncated normal. If left NULL, it will be estimated. |

`mean` |
The mean of the non-truncated distribution (defaults to zero) |

`sd` |
The sd of the non-truncated distribution (defaults to 1) |

The variance of a pdf (f(x)) is computed by integrating the function x^2*f(x) from -Inf to Inf. To compute
a truncated normal, the function remains the same, but the limits change (from -Inf to `cutoff`

).

the variance of the tuncated normal distribution

Dustin Fife

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