A program consists of two modules... Probability density functions f1(t) and f2(t). Probability of completing in time t?
- A. f1(t) + f2(t)
- B. Integral f1(x)f2(x) dx
- C. Convolution
- D. max(f1, f2)
Answer: C. Convolution
Explanation: If two independent sequential tasks have PDF f1 and f2, the total time PDF is the convolution f1 * f2.