Question 1205392
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you randomly {{{highlight(cross(selvt))}}} <U>select</U> an integer from 0 to 24 (inclusively) and then randomly 
select an integer from 0 to 19 (inclusively). what is the probability of selecting a 3 both times
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<pre>
The probability is {{{1/25}}}  to select randomly first "a 3", and the probability is {{{1/20}}}

to select randomly second "a 3".  Both events are independent.



So, the <U>ANSWER</U> to the problem's question is the product


    P = {{{(1/25)*(1/20)}}} = {{{1/500}}}.
</pre>

Solved.