please show work

Flag question: Question 5 Question 51 pts Given the premise set I={p,q,r,s} margins and =(pvq) Arempwoman, what is the weighted upper bound of the uncertainty of the conclusion of , if the probability of each element of If is 0.9? Provide your answer with 3 decimal cases (for instance, write 0.082 if you have obtained the value 0.082441, or 0.083 if you have obtained 0.082689)