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OpenStudy (anonymous):
How do I find the normalization constant? I've used variable elimination to calculate a conditional probability, and the textbook says the result is: a(.0003699, .001717)= (.1772, .8228) and a is the normalization constant. So how do I find a?
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OpenStudy (sandra):
ah right hmmm. well the normalization constant is the number you multiply the conditional probabilities by so that the sum of the probabilities is 1
OpenStudy (sandra):
as you can see, .1772 + .8228 = 1
OpenStudy (sandra):
so I'm pretty hazy on probability, but maybe a*.0003699 + a*.001717 = 1
OpenStudy (sandra):
0.0020869 * a = 1
OpenStudy (sandra):
a = 1/0.0020869
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OpenStudy (anonymous):
omg
OpenStudy (anonymous):
Lol thank you haha I'm so tired ... wtf I'm stupid
OpenStudy (anonymous):
I've been confusing a = a probability variable
OpenStudy (sandra):
heh np. hope that's right lol!
OpenStudy (anonymous):
Yes it is correct. Thanks very much.
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