Error is solution seminar 10, problem 5

I see from my notes that I have made an error on page 13 and 14 under the solution to problem 5 c.

I have mixed the q's and the p's. So switch out the q With the p.

Thus: P(S|U)=q and P(S|P)=p. Then it is in accordance with my drawing of the game. So on page 14:

P(S|U)=p= 0*0,5/0.5=0 and P(S|P)=q=1*0.5/0.5.

If any of you want to learn more about formally using Baye's rule, let me know and I will post a note on it.

Siv-Elisabeth