I have a dataset that looks like:

```
 foo     bar
 23      0
 72      1
 41      1
 32      2
 21      1
 21      1

```

I want to plot a qq plot and a histogram of the distribution of foo at bar equal to 1. How would I do that?

I know `plot` and `qqnorm` for qq plot. And I know `hist`.