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#1 2013-01-23 14:48:49
- cooljackiec
- Full Member
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Probability!
I have a bag with 5 pennies and 3 nickels. I draw coins out one at a time at random. What is the probability that I haven't removed all 3 nickels after 4 draws?
I tried 1/2 and 11/14. They are wrong
I see you have graph paper.
You must be plotting something
#2 2013-01-23 15:45:31
- bobbym
- Administrator
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Re: Probability!
Hi;
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.