the addition rule says that P(a or b) = p(a) + p(b). what must be true about eve
ID: 3063440 • Letter: T
Question
the addition rule says that P(a or b) = p(a) + p(b). what must be true about events a and b for this rule to apply?
A. the events must be mutually exclusive
B. the event a is conditioned on the event B
C. the events must be independent
D. the event B is conditioned on the event A
E. none of the above
If events A and B are mutlaly exlucsive (disjoint) then
A. they must also be independent
B. they cannot also be independent
C. they must also be complements
D. they cannot also be complements
E. none of the above
Explanation / Answer
1) Option-A) the events must be equally exclusive
2) Option-C) they must also be complements
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