What is the probability of an even number when a cube dice marked 1, 2, 3, 4, 5, 6 is rolled?
掷一枚标有1、2、3、4、5、6的正方体骰子，掷出的数字为偶数的可能性是多少．
<gadget id="calculator">3 / 6</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>