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# Calculate Cdr for District a and B. - Mathematics and Statistics

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Sum

Calculate CDR for district A and B.

 Age group (in years) District A District B Population No.of.Deaths Population No.of.Deaths 0 - 10 1000 18 3000 70 10 - 55 3000 32 7000 50 Above 55 2000 41 1000 24
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#### Solution

CDR = (sum "D"_"i")/(sum "P"_"i") xx 1000

For District A

sum "D"_"i" = 18 + 32 + 41 = 91

sum "P"_"i" = 1000 + 3000 + 2000 = 6000

∴ CDR for district A denoted by CDRA Is,

CDRA = (sum "D"_"i")/(sum "P"_"i") xx 1000

= 91/6000 xx 1000

 = 91/6 = 15.166  per thosand .

For District B

sum "D"_"i" = 70 + 50 + 24 = 144

sum "P"_"i" = 3000 + 7000 + 1000 = 11000

CDR for district B denoted by CDRB is ,

c= (sum "D"_"i")/(sum "P"_"i") xx 1000

= 144/11000 xx 1000

= 144/11 = 13.09  per thosand

Observe that district B is more healthy than district  A as CDRB  < CDRA .

Concept: Life Tables
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