About direct standardization all are true except: (A) Age specific death rate is not needed, (B) A standard population is needed, (C) Population should be comparable, (D) Two populations are compared
Answer is A. ref: Park&;s 23rd edition pg 58 Direct standardisation involves selection of a standard population which is defined as the one for which the number in each age and sex group are known. hence we require age specific death rate for comparison.