2023
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Three unbiased coins are tossed. What is the probability of getting at most two heads?
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3/4
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1/4
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3/8
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7/8
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Explanation:
Detailed explanation-1: -What is the probability of getting at most two heads? Let E = event of getting at most two heads. Then E = TTT, TTH, THT, HTT, THH, HTH, HHT. P(E) =n(E)/n(S)=7/8.
Detailed explanation-2: -‘ P(getting at most 2 heads ) = ‘P(E (3)) = 7/8‘.
Detailed explanation-3: -Probability of getting no head = 3/8.
Detailed explanation-4: -P(getting 2 heads when a coin is tossed twice)= 1/4.
There is 1 question to complete.