The pass rate of a factory's products is 90%, what is the probability of finding defective products during spot checks
某工厂产品的合格率是90%，抽查时查到次品的可能性是多少
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>