Five spades playing cards are "2", "3", "4", "5", "6", and the cards are stacked face down, what is the probability of randomly drawing one of them to be "5"
五张黑桃扑克牌分别是"2"、"3"、"4"、"5"、"6"，牌面向下叠在一起，从中任意抽出一张是"5"的可能性是多少
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>