Suppose That for a Certain Experiment $P ( A ) = \frac { 1 } { 3 } \text { and } P ( B ) = \frac { 1 } { 4 }$

question 228

Essay

Suppose that for a certain experiment $P ( A ) = \frac { 1 } { 3 } \text { and } P ( B ) = \frac { 1 } { 4 }$ and P(B) , and events A and B are mutually exclusive. Find P(A ∪ B).

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