2 coins are tossed. Find the probability of getting 1 head and 1 tail

Discussion in 'Calculator Requests' started by math_celebrity, Oct 30, 2019.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    2 coins are tossed. Find the probability of getting 1 head and 1 tail

    We can either flip HT or TH. Let's review probabilities:
    • HT = 1/2 * 1/2 = 1/4 <-- We multiply since each event is independent
    • TH = 1/2 * 1/2 = 1/4 <-- We multiply since each event is independent
    P(1 H, 1 T) = P(HT) + P(TH)
    P(1 H, 1 T) = 1/4 + 1/4
    P(1 H, 1 T) = 2/4

    Using our fraction simplifier, we can reduce 2/4 to 1/2
    P(1 H, 1 T) = 1/2
     

Share This Page