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Question -

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes
 
Find the probability of getting at most two heads.



Answer -

Total number of three coins are tossed (n) = 200
Getting at the most 2 heads (m) = 72 + 77 + 28 = 177
Probability P(A) = m/n = 177/200

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