【GMAT考满分数学PS题库】A coin that is tossed will land heads or tails, an_真题_答案

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A coin that is tossed will land heads or tails, and each outcome has equal probability. What is the probability that the coin will land heads at least once on two tosses?

$\frac{1}{4}$
$\frac{1}{3}$
$\frac{1}{2}$
$\frac{2}{3}$
$\frac{3}{4}$

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正确答案: E

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