HereMyStuff,

Thank you for the question.

Adding more factors would basically mean applying the same thinking multple times – making the formula longer, or the pictures N-dimensional. If you want to learn more about the mathematics I’m sure you’ll be able to find some on-line teaching material that covers the topic; it’s basic Statistics and (specifically) Bayes theorem that you would want to learn about.

Regards

Jonathan Lewis

Can this be taken “one step further”? Consider even more information and again change the “actual probability” (which is more likely (and by how much): you’ve got X, or you haven’t got X?) ? ]]>