Question

Pls solve quickly and win 100 pts

Answer 1

Answer:

Let’s call our sets A, B, and C.

If n = intersection and u = union.

Here are the need-to-know formulas:

P(A u B u C) = P(A) + P(B) + P(C) – P(A n B) – P(A n C) – P(B n C) + P(A n B n C)

To find the number of people in exactly one set:

P(A) + P(B) + P(C) – 2P(A n B) – 2P(A n C) – 2P(B n C) + 3P(A n B n C)

To find the number of people in exactly two sets:

P(A n B) + P(A n C) + P(B n C) – 3P(A n B n C)

To find the number of people in exactly three sets:

P(A n B n C)

To find the number of people in two or more sets:

P(A n B) + P(A n C) + P(B n C) – 2P(A n B n C)

To find the number of people in at least one set:

Answer 2

Explanation:

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