There are 10 cards, which are written with numbers from 1 to 10. If you draw one at random, what is the probability of getting an odd number?
有10张卡片，分别写着1--10各数，任意摸出一张，摸到奇数的可能性是多少
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

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