I have a feeling this is easy i just don't know how to do it.
The probability of flipping heads on a special coin is 2 out of 3 times. What is the probability of flipping the coin and it landing heads 6 out of 8 times?
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Probability
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Probability
by rcelsom » Mon Mar 19, 2012 7:39 pm
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Re: Probability
by nsguy1350 » Mon Mar 19, 2012 9:25 pm
Alright, I think I can help, but I don't guarantee it bring correct. If you could check with the answer key, that'd be great.
You can pick 8C6 combinations for getting 6 heads, out of [unparseable or potentially dangerous latex formula] total combinations (since there are 8 flips, do [unparseable or potentially dangerous latex formula]). You can see this in the binomial expansion.
Now, multiply 8C6 = 28 by [unparseable or potentially dangerous latex formula], since you have to get heads six times and tails once. I think that's a valid solution.
You can pick 8C6 combinations for getting 6 heads, out of [unparseable or potentially dangerous latex formula] total combinations (since there are 8 flips, do [unparseable or potentially dangerous latex formula]). You can see this in the binomial expansion.
Now, multiply 8C6 = 28 by [unparseable or potentially dangerous latex formula], since you have to get heads six times and tails once. I think that's a valid solution.
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SC - 344/292
CS - 212/124 (fail)
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Re: Probability
by redhawk2015 » Mon Mar 19, 2012 9:41 pm
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