If a coin is tossed 5 times, 1 time it lands heads and 4 times it lands tails, what is the probability that the coin lands heads on the 5th toss
投掷5次硬币，有1次正面朝上，4次反面朝上，那么，投掷第5次时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>