gorbach/jstat — comment on commit 4d9d94b5b276052ed2f3344f3ba1adec16b9f599
File:  line 0
By trevnorris:

This is true for population. It will now default to this, and I've added a flag to return the sample variance. e.g.:

```javascript
jStat.variance([ 1, 2, 3 ], 1 ) === 1;
```