"This page is screwed. A panel within the firs..."

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