Events E and F are such that P (not E or not F) = 0.25, State whether E and F are mutually exclusive.
Given: P(not E and not F) = 0.25
⇒1-P(E∩F)=0.25
⇒P(E∩F)=1-0.25=0.75 ≠0
∴ E and F are not mutually exclusive events.
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Events E and F are such that P (not E or not F) = 0.25, State whether E and F are mutually exclusive.
Given: P(not E and not F) = 0.25
⇒1-P(E∩F)=0.25
⇒P(E∩F)=1-0.25=0.75 ≠0
∴ E and F are not mutually exclusive events.