P(A) = 0.04, P(B) = 0.01, P(C) = 0.06, P(D) = 0.01 .
Assume that the functionality of each machine is independent of that of others. What is the probability that on a given day at least one machine will be working?
Answer is given below (on video)
Write first and second partial derivatives
Define variables, write systems of equations, write coefficient matrix, the B matrix and the solution matrix, x