Lemmie wrote:A Cautionary Letter to My Friends:
Well, here I am in Vegas, having the time of my life! I met someone last night who I really think is the luckiest person in the entire world.
Let me explain. I first saw him about 1 am, at the roulette table. Later he told me he had been playing Roulette since he got there, around 8 pm. Anyway, I watched him guess a number... and win! What are the odds? Well, just over 2%, according to my "Newbie's Guide to Vegas." Can you believe it?
The next night I went to a show- by myself, my new friend wanted to practice his roulette luck. Well, I met up with him around midnight, just in time to watch him play 4 numbers and win--not once but twice! The odds on that are about 10%, so not as amazing as his win the night before, but then--get this.
On his very next bet, he played Red, and also won! That's about 50/50 odds, but still, right after his 2 other wins? Amazing, right?! I went to bed right after that, but my friend stayed playing Roulette.
This morning, my friend found me at the brunch buffet. I have to say, he looked a little beat, but he said he was up all night playing games, so I can understand.
Anyway, here's my dilemma. My new friend needs to borrow $80,000. I know that's a lot, but he promises he will return it double by tonight. "Remember me and my wins? I'm the luckiest winner you've ever met, so it's not even a risk!" Then he said we can meet up at 8 pm tonight, and that doubling my money will be "the surest bet in the Casino!"
Well, I am thinking hard about this. What are the odds that he won FOUR TIMES this weekend? Each of those wins was totally unrelated to any other win, right? I mean really, what are the odds someone would win four times in a single weekend of gambling? So, if the wins are all independent, I can multiply their probabilities...
.02 x .1 x .1 x .5 = 0.0001.
That means there is only ONE chance in TEN THOUSAND that my friend managed all four wins! I remember reading somewhere about prior odds... before I got here this weekend I would have thought it would be 100 to 1 against a guesser turning out to actually be a... well, a "knower," I suppose!!
Anyway, if I multiply my prior odds by the odds of the four totally independent wins, I get... 0.0001 x 100 = 0.01 or 1 one-hundredth.
So, if i recall correctly what I read in the Interpreter about updating my posterior odds, that means that I now believe that the odds are ONE HUNDRED TO ONE that my new friend "knows" what bet will win at Roulette!
Well, I am off to the bank, there is no way I can pass up odds like this. It will totally use up all of my savings and max out every credit card I have, but since I'll be putting twice that amount back tomorrow, I can live with the high interest rates! (I will tell you that one of the Casino workers overheard my friend talking to me at brunch, and on the way out, she whispered in my ear something like, "ask him how many bets he...." then I didn't hear the last word. It was something like "bossed?" or "cost?" or maybe "lost?" but I don't really know.
Anyway, that's neither here nor there. I am confident my math is correct, and besides, I got it out of the Interpreter. I am taking into account all the information necessary to determine how good a guesser my new friend really is. Or should I say, KNOWER? Hah hah!!
I mean really, what are the odds I have found the one and only 'Knower' among all the 'Guessers' in Vegas?! I would say, "wish me luck!" but I don't really think I need it.![]()
Yours Truly,
.........................
Brilliant!



