- #1
thereddevils
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Homework Statement
Alvin and Andy both have 4 coins and 3 coins respectively. The coins are fair. Both of them toss each of their coins once. What is the probability that Alvin gets more head than Andy?
Homework Equations
The Attempt at a Solution
(1,0),(2,0),(3,0),(4,0),(2,1),(3,1),(4,1),(3,2),(4,2),(4,3)
the probability is (1/2)^8 x 10=5/128