Marlene says that the SUM of favourable and unfavourable outcomes in an activity always adds up to 1. Do you agree or disagree? Why or Why not? Explain your answer with examples plzzz!
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yes we agree
if we take the chances of rain then the probability of training will become 1/2 in the probability of not raining also becomes 1/2 if we add both these things we get 1/2 + 1/2 which is nothing but 1.
hence the sum of all the probabilities is 1.
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