A.Since the area of sampling units to be measured is small, greater care can be exercised in collection of data
B.Supervision can be improved
C.Fewer but better trained personnel will suffice
D.All of the above
A.Since the area of sampling units to be measured is small, greater care can be exercised in collection of data
B.Supervision can be improved
C.Fewer but better trained personnel will suffice
D.All of the above