Question 1123928
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<U>1. &nbsp;&nbsp;What is the probability that the selected person is someone who was not ticketed, given it is a woman</U> ? 


<pre>
     {{{20/(20+20)}}} = {{{20/40}}} = {{{1/2}}}.
</pre>


<U>2. &nbsp;&nbsp;What is the probability that the selected person is someone who was not ticketed, given it is a man</U> ? 


<pre>
     {{{30/(45+30)}}} = {{{30/75}}} = {{{2/5}}}.
</pre>

Solved.


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The formulas in this solution are self-explanatory, so they do not require additional explanations.