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Hae Suk flips a penny, a nickel, and a dime. How many ways can she get at least two heads?
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Hae Suk flips a penny, a nickel, and a dime. How many ways can she get at least two heads?

User Ibrohim Ermatov
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she can at least get 2 heads in: 3C3 + 3C2 = 4 ways
User Vicrobot
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