Who's closest to the correct number of sweets in a jar - an individual guess or the average of many individuals' guesses? Which average?
How do scientists or mathematicians estimate the size of a population of wild animals?
What proportion of people make 90% confident guesses which actually contain the correct answer?
Should Louis go for the safer options, hoping to limit his losses, or would he be better off with a riskier strategy, focusing on maximising his profit?
Should you insure your mobile phone? It rather depends on whether you focus on the long-term pay-off or the effect of a single event.