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Unformatted text preview: Expected value of heads in a sample of 20 coin tosses: The expected value of head is 10. I came up with this value because there are only two possible outcomes when flipping a coin: head or tails. The probability of getting a head is the same as the probability of getting a tail. Therefore, the probability of each sample point (heads or tails) must be equal to 0.5. Since, there are 20 independent tosses, The expected number of heads = N x P(heads), where N= number of tosses, and P= probability of heads = 20 x 0.5 = 10 is the expected number of heads in a sample of 20 coin tosses. Round Outcome 20 18 16 14 12 10 8 6 4 2 1.0 0.8 0.6 0.4 0.2 0.0 Coin Toss Results...
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- Spring '08
- 35%, Coin flipping, Coin, heads, Julie Melamud