If you toss a coin, the probability of it coming up heads is (1/2). Now that you have tossed it 3 times and all of them are heads, what is the probability of getting heads this time?
抛一枚硬币，正面朝上的可能性为(1/2)，现在已经抛了3次，都是正面朝上，这时再抛第4次，这次正面朝上的可能性等于多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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