PPSC Past Paper Assistant Protocol Officer in Directorate General Protocol, S&GAD 2019 Solved MCQs, General Knowledge MCQs, PPSC Solved Past Papers MCQsStalistical Study of Human population is called?A. Ecology B. Anthology C. Entomology D. Demography Complete the series 1,1,8,4,27,9?A Batsman makes a score of 87 Runs in the 17th inning and thus increase his average by 3 find his average?
