true
If you were to draw a probability tree, you would find that the odds of that happening are the same as any other outcome but those odds are 0.5^20
( willenium Fist bump for verification, Mon 12 Oct 2009, 20:03, 1 reply, 16 years ago)

which is way beyond the logic of most folks.
or am i being harsh?
( blaireau69 , the Cumbrian Travis Bickle., Mon 12 Oct 2009, 20:05, Reply)

My brain hurts!
*adopts Gumby stance*
( Maladicta, Mon 12 Oct 2009, 20:19, Reply)

each time you flip a coin you have a 0.5 chance of it landing either heads or tails.
The overall probability of getting heads twice in a row is 0.5 x 0.5 or 50% of each time you flip it. (0.5^2) so for twenty times (0.5^20)
( willenium Fist bump for verification, Mon 12 Oct 2009, 20:41, Reply)

Ah yes *has a vague memory of probability in maths at school*
I think I did some kind of experiment to prove this...
( Maladicta, Mon 12 Oct 2009, 20:45, Reply)

true
but due to the weighting of the coins, its more like 0.51/0.49 - but i dont remember which is heavier
(bamboozled Can hear you getting fatter, Mon 12 Oct 2009, 21:44, Reply)

Think it's the head (fnar)

( Maladicta, Mon 12 Oct 2009, 21:59, Reply)