Re: Question about technical analysis
- From: Chris Torek <nospam@xxxxxxxxx>
- Date: 19 Feb 2006 02:25:14 GMT
[someone noted the probability of 49 "heads" in a row, for a fair coin]
... or 1 in 562,949,953,421,312 = 2^49
If you flipped a coin every second from the time the earth was formed
(geological, not biblical age), it might have happened about 56 times.
There are more ways to make up, say, 25 heads and 24 tails, so the
probability of that happening is much higher.
In article <_JGdnc-eeKgTp2reRVn-rQ@xxxxxxxxxxx>
704set <704set@xxxxxxxxxxxxxxxxxxx> wrote:
The chances of 25 heads and 24 tails coming up in 49 flips is the same as 49
heads coming up in a row. It's still [1 in 2-sup-49]
He meant "25 heads total, and 24 tails total", not "25 heads in
sequence followed by 24 tails in sequence". For instance, the
sequence H T T H H gives 3 heads, 2 tails; so does the sequence
T H H H T.
Incidentally, I keep getting "edge". :-)
--
In-Real-Life: Chris Torek, Wind River Systems
Salt Lake City, UT, USA (40°39.22'N, 111°50.29'W) +1 801 277 2603
email: forget about it http://web.torek.net/torek/index.html
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