Two or three months ago, my trip to Las Vegas made me ponder the following: If all gambles in the casinos have negative expected values, why do people still engage in gambling - especially my friends fairly well-versed in probability/statistics?
Suffice it to say, I still have not answered that question.
On the other hand, this did lead me to ponder more about whether rational behavior always involves making choices with the highest expected (or positive) value - call this Rationality-Expectation (R-E) hypothesis.
Here I'd like to offer some counterexamples that show R-E is clearly false, to me at least. (In hindsight, these look fairly trivial but some commentators on this site speak as if... (read 244 more words →)
I'm just surprised to see that the Kercher family is sad that the accused were acquitted.
Why do the Kercher family think that Amanda Knox and Raffaele Sollecito are guilty?
Update: Here's a clue to the family's thinking: