Re: Conditional Probability

Bayes' Theorem.

Re: Conditional Probability

Hi,

thanks for your help.But I do not find the desired relationship.

Variant I: Bayes Theorem gives

P(a | b, c) = P(b, c | a)P(a)/P(b,c)

How do I get P(a,c | b) into the right hand side?

Variant II: Bayes Theorem gives

P(a, c | b) = P(b|a, c) P(a, c)/P(b)

How do I get P(a | b, c) into the right hand side?

Re: Conditional Probability

Quote:

Originally Posted by

**samosa** Variant I: Bayes Theorem gives

P(a | b, c) = P(b, c | a)P(a)/P(b,c)

How do I get P(a,c | b) into the right hand side?

In your class and/or textbook how are the symbols defined?

Re: Conditional Probability

Re: Conditional Probability

Hi Plato,

perhaps this way:

and

Then we have

giving

Is this correct?

Re: Conditional Probability

@abender, thanks a lot. Now I got it.

Re: Conditional Probability

Quote:

Originally Posted by

**samosa** @abender, thanks a lot. Now I got it.

Your welcome -- good luck.