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 2 years ago
There are 2 bags, each can hold 50 balls; there are 50 black balls and 50 red balls. A bag is selected at random, and a ball is taken out from it. What is the maximum and minimum probability that the ball being taken out is red.
 2 years ago
There are 2 bags, each can hold 50 balls; there are 50 black balls and 50 red balls. A bag is selected at random, and a ball is taken out from it. What is the maximum and minimum probability that the ball being taken out is red.

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shubhamsrg
 2 years ago
Best ResponseYou've already chosen the best response.0let 1st bag have x red balls, then it has 50x black balls also, 2nd bag then has 50x red balls and x black balls if x=0 or 50, then our probability is maximum and minimum i.e. 0 and 1 ..

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2sure ? where did u account for the probability of selecting a bag randomly. ?

shubhamsrg
 2 years ago
Best ResponseYou've already chosen the best response.0hmm,,i assumed 1 bag has already been taken..

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2nopes, its either 1/2,0 or 1/2,1/2

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2i wanna know, which one, for sure....

shubhamsrg
 2 years ago
Best ResponseYou've already chosen the best response.0after we select the bag, do we know how many balls are in there ?

shubhamsrg
 2 years ago
Best ResponseYou've already chosen the best response.0i mean how many red balls*

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2do we know? NO, can we find for max and min probab ?YES

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2and i want to know the concept of what is min and max probability

shubhamsrg
 2 years ago
Best ResponseYou've already chosen the best response.0then net probability i guess would be (1/2 * x/50) + (1/2 * (50x /50) ans i guess is half? o.O missed something maybe ..

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2u getting 1/2,1/2 right ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2i was getting 1/2,0 some of my friends were also telling 1/2,1/2 so i got confused

sauravshakya
 2 years ago
Best ResponseYou've already chosen the best response.0Even I heard it first time....... what is max and min probability.

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2i think max probab means a case in which the probab of selecting a red ball is max. it will be when we select a bag with all red balls in it....so 1/2

Shadowys
 2 years ago
Best ResponseYou've already chosen the best response.01 bags out of two. 1/2. The minimum probability you have said is quite a strange notion...if I don't choose at all, then it is 0.

Zekarias
 2 years ago
Best ResponseYou've already chosen the best response.1I agree with the above This is b/c we get the maximum probability when one bag is filled with 50  black balls and the other with 50 red balls. Here the probability of selecting the bag with 50  red balls is 1/2, and then the probability of selecting a red ball from this bag is 1. Thus the maximum probability will be 1/2* 1 = 1/2. Again we get the minimum probability when one bag is filled with 50  black balls and the other with 50 red balls, so that the probability of selecting the bag with 50  black balls is 1/2. And from this bag the probability of selecting red ball is 0. Thus the minimum probability is 1/2 * 0 = 0. Thus @hartnn u are correct since I get 1/2, 0.

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2so there is no different concept like man or min probability...?

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.0Amazing....!!!!! Isn't it??

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.0Even @hartnn has question today.. Ha ha ha ha...

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.2lol! i am human, can't i have questions ? :P

waterineyes
 2 years ago
Best ResponseYou've already chosen the best response.0No.... Ha ha ha ha..
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