Question: From the table given below interpolate by Lagranges formula and find the number of persons under 30 years of age. Age in years 10-15 15-20

From the table given below interpolate by Lagrange’s formula and find the number of persons under 30 years of age. 

Age in years

10-1515-2020-2525-3535-4545-55

Persons (in 1000 ’ s) 

19388092316361221830

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