planetqhe and the IB Random Behaviour Experimental vs Theoretical Compound Events I Compound Events II Expectations and Distributions Distributions and Hypotheses Probability in the real world Home Contact
Essential Questions Smart Luck Les Abattoirs lavarand uk lottery

stock market predictions

Your stories

Royal Navy  
QH(E) question

You enter a circular room. On the wall are portraits of fourteen young girls.

Seven of the girls are convicted murderers. The rest are innocent.

You examine the portraits and try to pick out the murderers.

What is the probability that you pick the seven murderers?

(1) Less than 50-50 (2) Exactly 50-50 (3) More than 50-50?

Link to Les Abattoirs, Toulouse.

Activity not written yet, hence the (E)