Three fair coins are tossed simultaneously

MATHEMATICS · Single correct · GCSE · Mathematics · Probability · Probability

Problem

Three fair coins are tossed simultaneously. Determine the probability of getting at least one head. (a) 18\dfrac{1}{8} (b) 38\dfrac{3}{8} (c) 78\dfrac{7}{8} (d) 34\dfrac{3}{4}

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