There are 10 parts in the box, 9 of which are qualified and 1 is unqualified. Master Li randomly takes out a part from it, what is the probability of getting a qualified part?
箱子里有10个零件，其中有9个合格，1个不合格．李师傅从中任意拿出一个零件，拿到合格零件的可能性是多少．
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>