Mark the numbers 1, 2, 3, 4, 5, and 6 on the 6 faces of a cube, so what is the probability that "2" faces upwards?
在一个正方体的6个面上分别标上数字1、2、3、4、5、6，使得"2"朝上的可能性是多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>