The sets A and B in Exercise 6. The following formula gives the probability of the union
Question:
The following formula gives the probability of the union of any two events, whether or not they are disjoint,
Pr(A B) = Pr(A) + Pr(B) - Pr(A B).
As indicated in the figure, adding the area in A and B counts the area in the intersection A B twice. Subtracting the area of the intersection corrects for this double counting.
Test this formula on the above example.
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Related Book For
Modeling the Dynamics of Life Calculus and Probability for Life Scientists
ISBN: 978-0840064189
3rd edition
Authors: Frederick R. Adler
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