# #cochran

1. ### Conditional Probability question

Can anyone show me how to get the correct answer from this question? I've tried drawing tree diagrams and using bayes theorem but just not sure how to compute it. Thank you so much
2. ### Assumption violation for mcnemar test?

I'm doing an outcome study for a form of therapy in which I have pre-post data for 48 participants and pre, post and follow-up data for 10 ps. The outcomes are all measured on a yes/no basis so it's nominal data. I think I need to use the mcnemar test to analyse pre-post or post-FU but are there...