Two unbiased coin are tossed .What is the probability of getting at most one head?
A. $$\frac{{1}}{{4}}$$
B. 2
C. $$\frac{{3}}{{4}}$$
D. 1
Answer: Option C
Solution (By Examveda Team)
Sample space (All [possible outcomes)S=(HH, HT, TH, TT)Event(required outcomes) = (TT, HT, TH)
$$\eqalign{ & {\text{p}}\left( {\text{E}} \right) = \frac{{{\text{n}}\left( {\text{E}} \right)}}{{{\text{n}}\left( {\text{S}} \right)}} \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \frac{3}{4} \cr} $$
This Question Belongs to Arithmetic Ability >> Probability
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