Question
Download Solution PDFFive coins are tossed once. What is the probability of getting at most four tails ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
If A and B are independent, then P(A and B) = P(A).P(B)
Explanation:
Probability of getting atmost four tails in five tosses = 1 - Probability of getting all five tails
⇒ Probability of getting atmost four tails in five tosses = 1 - P(T,T,T,T,T)
In one toss, P(H) =
Since all five tosses are independent,
⇒ P(T,T,T,T,T) =
⇒ Probability of getting atmost four tails in five tosses = 1 -
∴ The correct option is (1).
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