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If 10% of all us citizens are left-handed, find the probability that all will not be left-handed if 3 us citizens are chosen at random.
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If 10% of all us citizens are left-handed, find the probability that all will not be left-handed if 3 us citizens are chosen at random.

User Nero Vanbiervliet
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The probability that each is right-handed is 0.9, so the probability that all are right-handed (none is left-handed) is
0.9³ = 0.729
User Turkdogan Tasdelen
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