Use the following Cost decision tree and calculate the EV at node 3. ( P(s1) = 0.75, P(F) = 0.8, P(s1|F) = 0.85, P(s1|U) = 0.55, P(s2) = 0.25, P(U) = 0.2, P(s2|F) = 0.15, P(s2|U) = 0.45 ).
a) Incoherent question structure
b) Invalid mathematical problem
