Answer (Choose 1 answer)
Suppose that the time it takes a data collection operator to fill out an electronic form for a database is uniformly between 1.6 and 2.2 minutes.What are the mean and variance of the time it takes an operator to fill out the form?
A. E(X)=0.6 and V(X)=0.03
B. E(X)=1.9 and V(X)=0.03
C. E(X)=1.9 and V(X)=0.05
D. E(X)=0.6 and V(X)=0.361
