If P(A) + P(B) = 1, does it follow that either event A or event B must occur?
If P(A) + P(B) = 1, does it follow that either event A or event B must occur?
Burhan Tayyab , 15 Years ago
Grade
Algebra> Probablity and statistics...
2 AnswersMir Noaman Ali IIT-Roorkee
NO IT IS NOT NECESSARY
Ritvik Gautam
No it does not mean that either or the event must occur.
for exaple... p(a) could be 0.. in that case too... P(a) + P(b) = 1
Please Approve!!
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