Re: [理工] [機率]-機率
※ 引述《AAJJBurnett (叫我投手)》之銘言：
: An urn contains two red balls and four white balls. Sample successively
: five times at random and with replacement so that the trials are independent.
: Compute the probability of each of the two sequence WWRWR and RWWWR.
P(WWRWR)= 4/6 * 4/6 * 2/6 * 4/6 * 2/6
P(RWWWR)= 2/6 * 4/6 * 4/6 * 4/6 * 2/6
P(WWRWR)=P(RWWWR)=(4/6)^3*(2/6)^2
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10/05 10:03, , 1F
10/05 10:03, 1F
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