Consider the given scenario with randomly chosen, fixed real numbers w1, w2, w3, and two other randomly chosen, fixed numbers b1, b2. The value ŷ is calculated by:
(i) Given inputs x1 and x2, find s = b1 + w1·x1 + w2·x2.
(ii) Calculate ŷ = S(a) where S is the logistic sigmoid function.
Assume w1 = 0.64, w2 = -0.51, w3 = 1.18, b1 = -0.97, and b2 = 0.77. Find ŷ if x1 = 0.97 and x2 = -0.62.
A. 0.631
B. 0.547
C. 0.725
D. 0.482