Suppose we have two coins, coin A and coin B, and flip them each 10 times....

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Question

Suppose we have two coins, coin A and coin B, and flip them each 10 times....

Suppose we have two coins, coin A and coin B, and flip them each 10 times. Let E be the event that every time coin A comes up heads, so does coin B. Find P(E).

hint: use conditional probability

math Statistics-And-Probability

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Answer 1

Answer #1

probability that a coin comes up head, p = 0.5

tossing a coin 10 times, each occurance is independent of the other, hence probability of getting all heads on any coin is 0.5^10

Hence, P(E) = 0.5^10 * 0.5^10 = 0.5^20

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Answer 2

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