9. If is the probability of an event, what is the probability of the event ‘not A’.
Given,
P(E) =
We know,
P(not E) = P(E') = 1 - P(E)
=
CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years
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