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Present Population given Forecasted Population Formula

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Last Known Population is the population of any area of the previous year or decade. Check FAQs

P o = P n - (B.R. - D.R. + M.R.) \cdot N

P_o - Last Known Population?P_n - Forecasted Population?B.R. - Average Birth Rate Per Year?D.R. - Average Death Rate Per Year?M.R. - Average Migration Rate per Year?N - Number of Years?

Present Population given Forecasted Population Example

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Here is how the Present Population given Forecasted Population equation looks like with Values.

Here is how the Present Population given Forecasted Population equation looks like with Units.

Here is how the Present Population given Forecasted Population equation looks like.

275000 = 350000 - (10000 - 5000 + 2500) \cdot 10

275000 = 350000 - (100001/Year - 50001/Year + 25001/Year) \cdot 10Year

275000 = 350000 - (10000 - 5000 + 2500) \cdot 10

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Present Population given Forecasted Population Solution

Follow our step by step solution on how to calculate Present Population given Forecasted Population?

FIRST Step Consider the formula

P o = P n - (B.R. - D.R. + M.R.) \cdot N

Next Step Substitute values of Variables

∴

P o = 350000 - (100001/Year - 50001/Year + 25001/Year) \cdot 10Year

Next Step Prepare to Evaluate

∴

P o = 350000 - (10000 - 5000 + 2500) \cdot 10

LAST Step Evaluate

∴

P o = 275000

Present Population given Forecasted Population Formula Elements

Variables

Last Known Population

Last Known Population is the population of any area of the previous year or decade.

Symbol: P_o

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Last Known Population

Forecasted Population

Forecasted Population is the population forested usually after n decade or after n years.

Symbol: P_n

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Forecasted Population

Average Birth Rate Per Year

Average Birth Rate Per Year is the arithmetic average of total births within a year.

Symbol: B.R.

Measurement: Time InverseUnit: 1/Year

Note: Value should be greater than 0.

Formulas to find Average Birth Rate Per Year

Average Death Rate Per Year

Average Death Rate Per Year is the arithmetic mean of number of deaths within a year.

Symbol: D.R.

Measurement: Time InverseUnit: 1/Year

Note: Value should be greater than 0.

Formulas to find Average Death Rate Per Year

Average Migration Rate per Year

Average Migration Rate per Year means moving within a state, country, or continent in a year. It can be positive or negative.

Symbol: M.R.

Measurement: Time InverseUnit: 1/Year

Note: Value can be positive or negative.

Formulas to find Average Migration Rate per Year

Number of Years

Number of Years is the year for which the population is forecasted from the last known population.

Symbol: N

Measurement: TimeUnit: Year

Note: Value should be greater than 0.

Formulas to find Number of Years

Other formulas in Growth Composition Analysis Method category

Go Future Population at End of n Year given Migration

P n = P o + (B.R. - D.R. + M.R.) \cdot N

Go Migration given Future Population at End of n Year

M.R. = \frac{P n - P o}{N} - B.R. + D.R.

Go Natural Increase given Design Period

N.I. = \frac{P n - P o}{N} - M.R.

Go Average Birth Rate Per Year given Future Population

B.R. = \frac{P n - P o}{N} + D.R. - M.R.

How to Evaluate Present Population given Forecasted Population?

Present Population given Forecasted Population evaluator uses Last Known Population = Forecasted Population-(Average Birth Rate Per Year-Average Death Rate Per Year+Average Migration Rate per Year)*Number of Years to evaluate the Last Known Population, The Present Population given Forecasted Population formula is defined as the value of the present population when we have prior information on other parameters used. Last Known Population is denoted by P_o symbol.

How to evaluate Present Population given Forecasted Population using this online evaluator? To use this online evaluator for Present Population given Forecasted Population, enter Forecasted Population (P_n), Average Birth Rate Per Year (B.R.), Average Death Rate Per Year (D.R.), Average Migration Rate per Year (M.R.) & Number of Years (N) and hit the calculate button.

FAQs on Present Population given Forecasted Population

What is the formula to find Present Population given Forecasted Population?

The formula of Present Population given Forecasted Population is expressed as Last Known Population = Forecasted Population-(Average Birth Rate Per Year-Average Death Rate Per Year+Average Migration Rate per Year)*Number of Years. Here is an example- 275000 = 350000-(0.000316887385068114-0.000158443692534057+7.92218462670286E-05)*315569520.

How to calculate Present Population given Forecasted Population?

With Forecasted Population (P_n), Average Birth Rate Per Year (B.R.), Average Death Rate Per Year (D.R.), Average Migration Rate per Year (M.R.) & Number of Years (N) we can find Present Population given Forecasted Population using the formula - Last Known Population = Forecasted Population-(Average Birth Rate Per Year-Average Death Rate Per Year+Average Migration Rate per Year)*Number of Years.

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Present Population given Forecasted Population Formula

Present Population given Forecasted Population Example

Present Population given Forecasted Population Solution

Present Population given Forecasted Population Formula Elements

Other formulas in Growth Composition Analysis Method category

How to Evaluate Present Population given Forecasted Population?

FAQs on Present Population given Forecasted Population

Variable Name