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anonymous
 3 years ago
Help with probability
anonymous
 3 years ago
Help with probability

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

ParthKohli
 3 years ago
Best ResponseYou've already chosen the best response.0The sum of all probabilities must be __

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0yeah, that's why I get confused

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

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0answer is b , but i dont know why?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2i would have gone with D

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0but actually answer is B

ParthKohli
 3 years ago
Best ResponseYou've already chosen the best response.0The 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.

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2C+ or better = 1 (C or D or E)

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2P (C+ or better) = 1P (C or D or E)) =1 (0.22+0.09+0.07)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0why we choose c ,d, e ?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2C+ 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)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0oh, I got it , thank you very much

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.2because 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
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