Here Death rates are given, i.e., ASDR’s of Population A and B. Let A and B be ASDR’s (Death rates) of Population A and B.
SDR (A) =\(\frac{∑PA}{∑P}\) ; SDR(B) =\(\frac{∑PB}{∑P}\)
Where P = Std. Population.
SDR (A) = \(\frac{1556200}{122000}\) = 28. 75 ;= 12.756
SDR (B) = 13.269.