Question

three coins are tossed simultaneously find the probability of getting exactly 2 heads​

Answer 1

Answer:

p(getting exactly 2 heads) = 3/8

outcomes: HHH, HHT, HTH, TTT, TTH, THT, THH, HTT

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Answer 2

Answer:

three coins are tossed simultaneously the sample space is

S= {TTT,HHH,THT,HTH,TTH,HHT,HTT,THH}

n(s)=8

let a be the event such that the coins get exactly 2heads .

A{HTH,HHT}

n(A)=2

p(A)= n(A)/n(S)

=2/8

therefore, 1/4 is the answer .

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