Question 1148958
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The problems formulation is not precisely accurate, so I will edit it.

My editing is <U>underlined</U>.


<pre>
    if we <U>randomly</U> generate 100  <U>integer</U> numbers between 1 and 100 , can we determine 
    what is the probability a particular number, for example 27, is not generated?
</pre>


<U>Solution</U>


<pre>
For any one single generation (any one of the 100 generations), the probability to get any integer 
between 1 and 100 is  {{{1/100}}},  under the given condition.


Hence, for any one single generation (any one of the 100 generations), the probability DO NOT get some particular integer 
between 1 and 100 is  {{{99/100}}},  under the given condition.


It implies that the probability DO NOT get some particular number at 100 generations is  

          {{{(99/100)^100}}} = 0.366 = 36.6%  (approximately).
</pre>

Solved.