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03 Mar 16
20:13
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26 Jan 03
If I throw a coin three times, the chances of hitting HEAD HEAD HEAD is 1 in 8.
What are the chances of HEAD HEAD HEAD if I throw them all together
What are the chances of HEAD HEAD HEAD if I throw them all together
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Replies: 33
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The same?
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Assuming 3 identical idealised coins, the same.
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Do you have to spin them ....if so you will need 3 hands !
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t0sser.
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I am a professional problemataterion and I say the odds at the same based on Einstein,s theory that time does really not exist.
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need a fountain
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I know that if I back three 1/1 horses to win three races at the same time one always loses.
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The possibilities are:
HHH TTT HTT HHT Which makes it 1 in 4. |
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How can "a coin" become "them"?
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It's one in 8. Probability 1/2*1/2*1/2.
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you are all wrong:
statistically one of the unlikeliest things which have happened was when a professor was lecturing on probability and was tossing a coin - asking for calls of heads or tails: the coin landed - and balanced - on its side- to the astonishment of all. |
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iamajambo 08 Mar 16 18:38 Joined: 13 Mar 05 | Topic/replies: 4,209 | Blogger: iamajambo's blog
The possibilities are: HHH TTT HTT HHT Which makes it 1 in 4. Rate reply: what about HTH then? |
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FFS!
Good question though... I too initially assumed it to be 1 in 8. |
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But there are only 4 possible outcomes...or am I losing my marbles?
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hhh, hht, htt, hth, ttt, tth, thh, tht.
hth |
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but hht is the same outcome as hth? isnt it? 2 heads and a tail.
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The probability of outcome HHH is one in four. The probability of sequence HHH is one in eight. I think
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yeah, think you have nailed it....distinction between 'outcome' and 'sequence'.
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It's 1 in 8, FFS, coin tossing is the most basic example you'll do day one if you ever look into probability!
Its' the probability of the first toss (0.5) being correct which then HAS TO have the next correct and so on, in order to render the complete sequence you're trying to find the probability of. 0.5*0.5*0.5. Another example, if you had you a single suit of 13 cards, took a card, put back, shuffled, then took again, to get 3 aces in a row would be 1/13*1/13*1/13. |
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It's 1 in 8 Ozymandius.
Although there are only 4 types of outcome, hht and tth have a higher probability than hhh or ttt (as shown by kincsem). It's similar to rolling two dice where 7 is more likely than 12 or 2. |
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Combinations v Permutations.
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ok, Foinavon, thanks, that's a helpful explanation.
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HowieTheRookie only has ONE coin, ffs - how can he throw it thrice simultaneously?
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^ and my shrink tries to tell me I'M nuts!
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anybody want 4/1 then pm me
i too once had a coin land on its side, we never got a proper calculation of odds of it happening very very small no doubt , getting on for 1,000,000 to one at a guess |
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Probability Questions:
1. If I put a pound coin in a pub urinal, then an average forumite came in, what's the odds the pound coin would still be there when he left? 2. If the answer to "1" was no coin, what's the odds the sink taps wouldn't have been used?  |
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2!*2!*2!
1/8 |
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i once rolled6dice 3 times and got all 6's - yes - 18 sixes 'in a row' - we all fell about laughing - and no- the dice were not 'loaded' - it was part of a game and didnt happen before or since....
get number crunching guys.... |