Question
Two unbiased coin are tossed .What is the probability of getting at most one head?
Answer: Option C
Sample space (All [possible outcomes)S=(HH, HT, TH, TT)
Event(required outcomes) = (TT, HT, TH)
$$\eqalign{
& {\text{p}}\left( {\text{E}} \right) = \frac{{{\text{n}}\left( {\text{E}} \right)}}{{{\text{n}}\left( {\text{S}} \right)}} \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \frac{3}{4} \cr} $$
Was this answer helpful ?
Sample space (All [possible outcomes)S=(HH, HT, TH, TT)
Event(required outcomes) = (TT, HT, TH)
$$\eqalign{
& {\text{p}}\left( {\text{E}} \right) = \frac{{{\text{n}}\left( {\text{E}} \right)}}{{{\text{n}}\left( {\text{S}} \right)}} \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \frac{3}{4} \cr} $$
Was this answer helpful ?
More Questions on This Topic :
Question 6. The mean of binomial distribution is....
Question 8. Each trial in Binomial distribution has....
Question 9. In a Poisson probability distribution....
Latest Videos
Latest Test Papers
Submit Solution