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# accuracy ratio formula

From Wikipedia

Dependency ratio

In economics and geography the dependency ratio is an age-population ratio of those typically not in the labor force (the dependent part) and those typically in the labor force (the productive part).

## Formula

In published international statistics, the dependent part usually includes those under the age of 15 and over the age of 64. The productive part makes up the population in between, ages 15 â€“ 64. It is normally expressed as a percentage:

(Total)\ Dependency\ ratio = \frac{(number\ of\ people\ aged\ 0\ to\ 14\ and\ those\ aged\ 65\ and\ over)} {number\ of\ people\ aged\ 15\to \ 64} \times 100

As the ratio increases there may be an increased burden on the productive part of the population to maintain the upbringing and pensions of the economically dependent. This results in direct impacts on financial expenditures on things like social security, as well as many indirect consequences.

The (total) dependency ratio can be decomposed into the child dependency ratio and the aged dependency ratio:

Child\ dependency\ ratio = \frac{number\ of\ people\ aged\ 0-14} {number\ of\ people\ aged\ 15-64} \times 100
Aged\ dependency\ ratio\ = \frac{number\ of\ people\ aged\ 65\ and\ over} {number\ of\ people\ aged\ 15-64} \times 100

## Inverse

The inverse of the dependency ratio, the inverse dependency ratio can be interpreted as how many independent workers have to provide for one dependent person (pension & expenditure on children)

Question:How do I calculate the accuracy of my ratio on this chemical formula ? the formula is 3ZnoH2 2 ZnC03 heat --> 5 Zn0 2 C02 3H20 My formula is 3 Zn0 2C0 H20 how do i calculate my accuracy of the product side? the formula is 3Zn(0H)2* 2 ZnC03 heat -- 5 Zn0+ 2 C02+ 3H20 ........My formula is 3 Zn0+ 2C0+ H20? the formula is 3Zn(0H)2* 2 ZnC03 heat -- 5 Zn0+ 2 C02+ 3H20 ........My formula is 3 Zn0+ 2C0+ H20?

Answers:Both equations are balanced. This is a combination of two reactions, and balancing can be done in many different ways. Zn(OH)2 -heat-> ZnO + H2O and ZnCO3 -heat-> ZnO + CO2

Question:What is the formula for % accuracy? Is it just 100% - % error?

Answers:[ (error - reference) / reference ] * 100 = % accuracy ~

Question:can anyone tell me?

Answers:100 * (estimate - actual)/actual = %error