SOLUTION: Without writing them all out, what is the number of subsets of set A = {tongue, ear, mouth, eye, nose}

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Question 292511: Without writing them all out, what is the number of subsets of set A = {tongue, ear, mouth, eye, nose}
Answer by stanbon(75887) About Me  (Show Source):
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Without writing them all out, what is the number of subsets of set A = {tongue, ear, mouth, eye, nose}
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Each of the 5 elements is either "in" or "not in" each subset.
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So there are 2 choices for each element.
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And there are 5 elements.
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So there are 2^5 = 32 different subsets including the empty subset.
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Cheers,
Stan H
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