Three unbiased coins are tossed simultaneously.Find the probability of getting (a) one tail (b) at least one head (c) at most one head (d) two heads. Experts please don't give links 

The no of outcomes can be (h for head and t for tail)
So, no of outcomes =6
(a) probablity of getting one tail= 5/6
(b) probablity of getting atleast one head= 5/6
(d) pribablity of getting two heads = 3/6 = 1/2

C i found similar as b in ur question so did nit ans. Experts pls correct me if i am wrong.
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