Two coins are tossed. Find the probability of the events head appears on both the coins.

Since two coins are tossed

∴ Sample space = {HH, HT, TH, TT}

∴ n(S) = 4

Let A = Event of getting a head appears on both the coins.

∴ A = {HH}

∴ n(A) = 1

P(A) = n(A) = 1 n(S) 4