If events E1,E2,...,En represent a partition of sample space S.
Then which of the following is/are correct?
A
E1∩E2=ϕ
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B
E1∩E2≠ϕ
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C
E1∪E2∪...∪En=S
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D
P(Ei)>0foralli=1,2,⋯,n
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Solution
The correct option is DP(Ei)>0foralli=1,2,⋯,n A set of events E1,E2,...,En is said to represent a partition of the sample space S if Ei∩Ej=ϕ,i≠j,i,j=1,2,…,n E1∪E2∪...∪En=S
and P(Ei)>0foralli=1,2,...,n