In how many different ways can 5 tosses of a coin yield 2 heads and 3 tails?
I know I can just list all the possibility and it wouldn't be hard.
But I want to know how to solve this problem by using combination or permutation because it will be more complicated if the number of tosses increase.
Please help me to solve this problem with COMBINATION OR PERMUTATION.
In how many different ways can 5 tosses of a coin yield 2 heads and 3...
A person tosses a coin 19 times. In how many ways can he get 15 heads?
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Two coins with heads probabilities 1/3 and 1/4 are alternately tossed, starting with the 1/3 coin, until one of them turns up heads. Let ? denote the total number of tosses, including the last. Find: P(X=even) ?(?). I know the answer, but can anyone give me some explanation, not just the answer?
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