Question

A coin is tossed 3 times. List the possible outcomes. Find the probability of getting all heads

Answer 1

The possible outcomes if a coin is tossed 3 times is

S = {(HHH), (TTT), (HTT), (THT), (TEH), (THH), (HTH), (HHT)}

Let E₁ = Event of getting all heads = {(HHH)}

∴ n(E₁) = 1

∴ `P(E_1) = (n(E_1))/(n(S)) = 1/8`