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hartnnBest ResponseYou've already chosen the best response.2
sum of all probabilities must equal 1. so, add them and equate it to 1 but there are 2 values unknown.,.....
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
The sum of all probabilities must be __
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
yeah, that's why I get confused
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
if any one of the ??? was given, then you could have found out other ???
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
answer is b , but i dont know why?
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
i would have gone with D
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
but actually answer is B
 one year ago

ParthKohliBest ResponseYou've already chosen the best response.0
The answer would be B if and only if the probability of getting A+, A, B+ and B is equal to the probability of getting C+, C, D, F. But that is not given in the question, so I'd go with Hartnn.
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
oh wait its possible :P
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
C+ or better = 1 (C or D or E)
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
P (C+ or better) = 1P (C or D or E)) =1 (0.22+0.09+0.07)
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
why we choose c ,d, e ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
C+ or better means A+ to C+ if we add all probabilities, we get =1 so, A+ to F = 1 (A+ to C+) + (C,D,F) =1 so, (A+to C+) = 1 (C,D,F)
 one year ago

yashar806Best ResponseYou've already chosen the best response.0
oh, I got it , thank you very much
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
because you don't want 5 out of 8, you need probabilities of C+ or better, which needs individual probabilities. you haven't used any of the probabilities given. also, 0.62 is different from 0.625
 one year ago
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