Consider the following boolean function of four variables f(w, x, y, z) = Σ(1, 3, 4, 6, 9, 11, 12, 14), the function is
- A. Independent of one variable
- B. Independent of two variables
- C. Independent of three variables
- D. Dependent on all variables
Answer: B. Independent of two variables
Explanation: The function simplifies to x XOR z (or x'z + xz'). It is independent of w and y.