unit 6 0.0 / 5 ? Statisticsunit 6GCSEEdexcel Created by: Taylor 28Created on: 22-09-22 13:58 index number formula Price x100 Base year price depending on whether the index number increases (>100) or decreases (< 100) 1 of 6 weighted index number formula (index number x weight) the sum of weights (w1+w2+w3) 2 of 6 chain base index number price x100 last years price 3 of 6 crude rates formula number of births /deaths x1000 total population cruse rates are measured per 1000 of the population un less stated in the question other wise 4 of 6 standard population number in age group x 1000 total population all standard population must add to 1000 5 of 6 Standardised population crude birth / death rate x standard population 1000 6 of 6
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