Question

Three coins are tossed simultaneously.What is the probability that at least two of them show head?

Answer 1

Answer:

1/2 or 0.5

Step-by-step explanation:

Total Outcomes when three coins are tosses = 8

[(HHH) or (HHT) or (HTH) or (THH) or (HTT) or (THT) or (TTH) or (TTT)]

Favourable Outcomes (At least two Heads) = 4 [(HHH), (HHT), (HTH) (THH)]

∴ Probability of at least two heads = 4/8

                                                          = 1/2 or 0.5