This page is screwed.

A panel within the first diagram reads:

```
Posterior Odds
3:4
```

Impossible to see where this comes from. Revise to read:

```
Posterior Odds
20% x 90% : 80% x 30%
= 0.18 : 0.24
= 3:4
```

by Chris Cooper Aug 19 2016

This page is screwed.

A panel within the first diagram reads:

```
Posterior Odds
3:4
```

Impossible to see where this comes from. Revise to read:

```
Posterior Odds
20% x 90% : 80% x 30%
= 0.18 : 0.24
= 3:4
```