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

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

Suppose That for a Certain Experiment P(A)=13P ( A ) = \frac { 1 } { 3 }P(A)=31​

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