Three unbiased coins are tossed once find the probability of getting atmost 2 tails or atleast 2 heads
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Answer:1/2
Step-by-step explanation:
Sample space={TTT,HTT,THH,HTH,THT,HHH,HHT,TTH}
Total number of outcomes=8
Favourable outcomes(for tails and heads)=4
P(2 tails or at least 2 heads)=4/8=1/2
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