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event A and B in a sample space S have the following probabilities. P(A)=0.4,P(B')=0.3 and P(A intersect B)=0.2... Help me to find number of sample space?
 one year ago
 one year ago
event A and B in a sample space S have the following probabilities. P(A)=0.4,P(B')=0.3 and P(A intersect B)=0.2... Help me to find number of sample space?
 one year ago
 one year ago

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srossdBest ResponseYou've already chosen the best response.1
What do you mean by "number of sample space"?
 one year ago

sha0403Best ResponseYou've already chosen the best response.0
did u know abt it n(s) in probabilitty? that include all the value of data..
 one year ago

srossdBest ResponseYou've already chosen the best response.1
Oh, cardinal number. Generally, you would need more info than that to figure out the cardinal number exactly, but the minimum possible would be 10, I think.
 one year ago

srossdBest ResponseYou've already chosen the best response.1
Oh oh ohhhh nevermind. Disregard everything I"ve said so far, I get it now.
 one year ago

srossdBest ResponseYou've already chosen the best response.1
So P(B) is 0.3, P(A) = 0.4...wait a minute, those can't be the only events, right?
 one year ago

srossdBest ResponseYou've already chosen the best response.1
And just noticed it was P(B'), so P(B) is 0.7, which is even worse :/.
 one year ago

sha0403Best ResponseYou've already chosen the best response.0
so,how we identified the n(s)?
 one year ago

srossdBest ResponseYou've already chosen the best response.1
Ok, actually, lets say they're not mutually exclusive events (normally that would be explicit, but oh well). So say A contains 4 events, and B contains 7. Their intersection contains 2. So there are 9 events: 4+72. Of course, it could be any multiple of 9 too.
 one year ago

srossdBest ResponseYou've already chosen the best response.1
Yeah, n(S)=9, I think that's what they're going for. Sorry I'm not exactly an expert here, but no one else is backing me up, so that's my best guess.
 one year ago

sha0403Best ResponseYou've already chosen the best response.0
oh i think that 9 at first but i'm not confident..but after u say that,, i confident now..thank u very much k.. =)
 one year ago
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