If a coin is tossed 3 times heads, 2 times heads, and 1 tails, what is the probability that the coin will come up heads if it is tossed again?
明明投掷一枚硬币3次正面朝上，2次正面朝上，1次反面朝上，如果再投掷一次，硬币正面朝上的可能性是多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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