(New page: q = P[H] You toss a coin 5 times, get heads on the fifth toss X~Geometric(q) max Px(5;q) = (1-q)^4*q derivative: (1-q)^4 - 4*(1-q)^3*q 4*q = 1 - q q = 1/5) |
(No difference)
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Revision as of 13:37, 3 November 2008
q = P[H]
You toss a coin 5 times, get heads on the fifth toss
X~Geometric(q)
max Px(5;q) = (1-q)^4*q
derivative: (1-q)^4 - 4*(1-q)^3*q
4*q = 1 - q
q = 1/5
