Subject
Quantitative Aptitude
Topic
Probability
Three unbiased coins are tossed. What is the probability of getting at most two heads?
Three unbiased coins are tossed. What is the probability of getting at most two heads?
ক)
3/4খ)
1/4গ)
3/8ঘ)
7/8Explanation
Here S = {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH} Let E = event of getting at most two heads. Then E = {TTT, TTH, THT, HTT, THH, HTH, HHT}. P(E) = n(E)/ n(S) = 7/8Related questions
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