A coin is tossed 9 times, 4 heads and 5 tails, what is the probability of getting heads on the 10th toss?
掷9次硬币，有4次正面朝上，5次反面朝上，请问第10次掷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>