# Differences

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probability:02_multiple_event_probability [2014/03/06 13:16] anna [2.2. Mutually non exclusive events] |
probability:02_multiple_event_probability [2014/03/06 13:22] (current) anna [2.4. Additional exercises] |
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++Answer| Note, that $\text{"my new friend is female"}=$\\ | ++Answer| Note, that $\text{"my new friend is female"}=$\\ | ||

$\text{"my new friend is female and at most $29$ years"}\cup | $\text{"my new friend is female and at most $29$ years"}\cup | ||

- | \text{"my new friend is female and at least $30$ years"}$, and the events | + | \text{"my new friend is female and at least $30$ years"}$, and these events are mutually exclusive. |

- | $\text{"my new friend is female and at most $29$ years"}$ and | + | Thus, $\text{Pr}[\text{"my new friend is female"}]=0,1+0,3=0,4$.++ |

- | $\text{"my new friend is female and at least $30$ years"}$ are mutually exclusive. Thus, | + | |

- | $\text{Pr}[\text{"my new friend is female"}]=0,1+0,3=0,4$.++ | + | |

</WRAP> | </WRAP> | ||