Given several probabilities it looks for how probable is to have a vector of each length

## See also

`length_probability()`

to calculate the probability of a specific
length.

## Examples

```
length_set(c(0.5, 0.1, 0.3, 0.5, 0.25, 0.23))
#> 0 1 2 3 4 5 6
#> 0.09095625 0.28848750 0.34851875 0.20302500 0.06009375 0.00848750 0.00043125
```