Question

If two coins are tossed once, what is the probability of getting at least one head.

Answer 1

When two coins are tossed together possible number of outcomes = {HH, TH, HT, TT} 

n(S) = 4

E = event of getting at least one head = {HH, TH, HT} 

n(E) = 3

Probability of getting at least one head = `(n(E))/(n(S)) = 3/4 `