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Two Coins More Heads Probability

1200ApprenticeCombinatoricsProbability

AMC 10A · 2004 · Problem 10

Coin $A$ is flipped three times and coin $B$ is flipped four times. What is the probability that the number of heads obtained from flipping the two fair coins is the same?

Answer choices

A
\frac{19}{128}
B
\frac{23}{128}
C
\frac14
D
\frac{35}{128}
E
\frac12
0 students attempted0% solvedRating 1200

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