What is the sum of probabilities of happening of an event or not happening of the event
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21
the sum of happening an event and not happening an event is 1.
amrithalayam9985:
Answer :
P(E) = 1
More like P(E) + P(not E) = 1
Answered by
21
Answer:
1
Step-by-step explanation:
This is the Law of Total Probability.
P ( it happens) + P ( it doesn't happen)
= P ( it happens OR it doesn't happen )
= 1, since it must happen or not happen!
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