I'm scratching my head over something that is probably simple Probabilities, but I guess I can't see it. Essentially, I have the following table:
------ ------ ------ ------ | D1 | D2 | S1=1 | S1=0 | ------ ------ ------ ------ | 0 | 0 | 0 | 1 | ------ ------ ------ ------ | 0 | 1 | 0.8 | 0.2 | ------ ------ ------ ------ | 1 | 0 | 0.75 | 0.25 | ------ ------ ------ ------ | 1 | 1 | ? | ? | ------ ------ ------ ------
Where, for example, the 0.8 in line 3 column 3 is the value for P(S1 = 1 | D2=1). I'm having trouble finding The ones marked with ?, namely P(S1=1 | D1=1, D2=1) (the other one is trivially 1-P(S1=1 | D1=1, D2=1)). Any help?
Thank you for your time in advance. I'll provide more details if necessary!