Two unbiased coins are tossed simultaneously. Find the probability of getting:
(i) At least one head
(ii) At most one head
(iii) No head
(a) (i) 1/2, (ii) 3/4, (iii) 1/4
(b) (i) 3/4, (ii) 1/2, (iii) 1/4
(c) (i) 3/4, (ii) 1/4, (iii) 1/2
(d) (i) 1/4, (ii) 3/4, (iii) 1/2
