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Question
Write sample space ‘S’ and number of sample point n(S) for the following experiment. Also write events A, B, C in the set form and write n(A), n(B), n(C).
Three coins are tossed simultaneously.
Condition for event A : To get at least two heads.
Condition for event B : To get no head.
Condition for event C : To get head on the second coin.
Solution
Sample Space (S) = {HHH, HHT, HTT, HTH, THT, TTH, THH, TTT}
∴ n(S) = 8
A = {HHH, HHT, HTH, THH}
∴ n(A) = 4
B = {TTT}
∴ n(B) = 1
C = {HHH, HHT, THT ,THH}
∴ n(C) = 4
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