Question

a) Assume it is NOT a leap year. How many ways are there that no two...

a)

Assume it is NOT a leap year. How many ways are there that no two students will have the same birth date in a class of size 60? Express the result in expression.

b)

Prove that A ∪ B = S − A’ ∩ B’, where S is the total sample space and A and B are two subsets in it. You might use the graph way.

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