Answers

2015-06-10T15:15:06+05:30
Number of possible outcomes :
(HT) (TH) (HH) (TT) = 4
Therefore four outcomes are posssible
Number of head ones in every outcomes:
(HT) (TH) (HH)
Here (HH) is included because head comes atleast once in this outcome
So the number of head onces in every outcome = 3
Probability = Total outcomes /possible outcomes
= 4/3
Therefore number of head appearing once is of probability 4/3.
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