Two coins are tossed simultaneously. Find the probability of getting.
(i) two heads, (ii) at least one head, (iii) no head.
If we toss two unbiased coins, then possible outcomes(s), are
S = { HH, TH, TT, HT }
⇒ n(S) = 4
Let A be the favourable outcomes of getting exactly one head, then
A = {TH, HT } i.e., n( A) = 2
Therefore, P(A) =
A die is thrown once. Find the probability of getting
(i) an even number.
(ii) a number greater than 3.
(iii) a number between 3 and 6.