What happens to variability when independent processes are combined to form a larger process?
A . variability of individual processes cancel out each other, resulting in a small overallvariability
B . variability of the total time is equal to the variability of the component with the largestvariability
C . variability of the total time equals the sum of the variability in all the component times
D . variability of the total time is equal to the variability of the component with the smallestvariability
Answer: C