Problem #4 (a) Let A (1, 2, 3, 4, 5), determine the number of subsets containing 4 or more number of elements? Show all your work to get full credit.
`Hey,
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For subsets with 4 or more number of elements.
We can say that it could either have 4 elements or 5 elements.
So, for 4 elements.
We can choose any 4 out of the given 5 numbers by combination as C(5,4)=5
So, for 5 elements.
We can choose any 5 out of the given 5 numbers by combination as C(5,5)=1
So, total number of subsets with either 4 or 5 number of elements is 5+1=6
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Problem #4 (a) Let A (1, 2, 3, 4, 5), determine the number of subsets containing...
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