Question 1136068
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The answer is in TWO LINES:


<pre>
    if n < 2 then the probability under the question is 0 (zero, ZERO);

    otherwise (i.e. if n >= 2) the probability is  {{{(n/9)*((n-1)/8)}}} = {{{(n*(n-1))/72}}}.
</pre>

First line answer/option is clear, and I am sure, it does not require further explanations.



Second line answer/option is based on the fact, that at the first taking the probability to get a jelly bean is n of 9 items, 

while the probability to get a jelly bean at the second taking is (n-1) of remaining 8 items.



The probabilities at the first and the second taking are INDEPENDENT EVENTS, so we multiply the probabilities of each event.



Congratulations: You obtained the full and complete solution with explanations.



Happy learning !