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What is the expected number of heads that come up when a fair coin is flipped 10 times?

What is the expected number of heads that come up when a fair coin is flipped 10 times?
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4 votes
What is the expected number of heads that come up when a fair coin is flipped 10 times?

User Adam Zarn
by
7.5k points

1 Answer

3 votes
This is a binomial distribution with a probability of success = 0.5 (fair coin).
n=10
so
mean = E[x] = np =10*0.5 =5
User Austin Salonen
by
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