I have just a little question about this : If I toss a coin 5 times, what is the probability of getting 4 tails and 1 head ? I think the answer is 5/32 ? Is this any good ? THanks
5/32 is correct.
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Omg im happy to know that because in my book it says its 4/32 ?!? And here is another one, what is the prob that it will land 3 times on head and 2 times on tails ? I got 9/32 but in my book it says 8/32 ?!? There is always 1 of difference, we could say it's an error ? Thanks !
Welcome to the forum.
Stay on-line. I'm just working it out.
1 5 10 10 5 1
It should be 10/32
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You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
oh yes you're right. i noticed i missed one, so thanks ! finaly, my book wasnt right ! thanks you two !
Both of those are binomial distribution problems. What is the name of the book?
In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.