Randomly draw one of the eight number cards 1, 2, 3, 4, 5, 6, 7, and 8. What is the probability of drawing a composite number?
从1、2、3、4、5、6、7、8八张数字卡片中任意抽取一张，抽到合数的可能性是多少
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>