Big book-1, DI


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Hello all,
For Q-23, help me with the hint to solve. I dont’t get the question.
Thanks.

The answer is asking for N - N(C \cup D), Total number of Senators that are neither catholic nor Democrat
For this, you need to find out N(C \cup D) = Number of people that are either catholic or Democrat

Hint: You can calculate it the same you calculate P(C \cup D)

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