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Present Population given Future Population from Incremental Increase Method Formula

GoPresent Population given Future Population of 2 Decades by Incremental Increase Method Formula

GoPresent Population given Future Population of 3 Decades by Incremental Increase Method 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 - n \cdot x̄ - (n \cdot \frac{n + 1}{2}) \cdot ȳ

P_o - Last Known Population?P_n - Forecasted Population?n - Number of Decades?x̄ - Average Arithmetic Increase in Population?ȳ - Average Incremental Increase in Population?

Present Population given Future Population from Incremental Increase Method Example

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Here is how the Present Population given Future Population from Incremental Increase Method equation looks like with Values.

Here is how the Present Population given Future Population from Incremental Increase Method equation looks like with Units.

Here is how the Present Population given Future Population from Incremental Increase Method equation looks like.

275000 = 350000 - 2 \cdot 25500 - (2 \cdot \frac{2 + 1}{2}) \cdot 8000

275000 = 350000 - 2 \cdot 25500 - (2 \cdot \frac{2 + 1}{2}) \cdot 8000

275000 = 350000 - 2 \cdot 25500 - (2 \cdot \frac{2 + 1}{2}) \cdot 8000

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Present Population given Future Population from Incremental Increase Method Solution

Follow our step by step solution on how to calculate Present Population given Future Population from Incremental Increase Method?

FIRST Step Consider the formula

P o = P n - n \cdot x̄ - (n \cdot \frac{n + 1}{2}) \cdot ȳ

Next Step Substitute values of Variables

∴

P o = 350000 - 2 \cdot 25500 - (2 \cdot \frac{2 + 1}{2}) \cdot 8000

Next Step Prepare to Evaluate

∴

P o = 350000 - 2 \cdot 25500 - (2 \cdot \frac{2 + 1}{2}) \cdot 8000

LAST Step Evaluate

∴

P o = 275000

Present Population given Future Population from Incremental Increase Method 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

Number of Decades

Number of Decades is the year gap of 10 years. Usually, 10 years is equal to 1 decade.

Symbol: n

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Decades

Average Arithmetic Increase in Population

Average Arithmetic Increase in Population per decade.

Symbol: x̄

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Average Arithmetic Increase in Population

Average Incremental Increase in Population

Average Incremental Increase in Population per decade. It can be positive(+ve) or negative(-ve).

Symbol: ȳ

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Average Incremental Increase in Population

Other Formulas to find Last Known Population

Go Present Population given Future Population of 2 Decades by Incremental Increase Method

P o = P n - 2 \cdot x̄ - (2 \cdot \frac{2 + 1}{2}) \cdot ȳ

Go Present Population given Future Population of 3 Decades by Incremental Increase Method

P o = P n - 3 \cdot x̄ - (3 \cdot \frac{3 + 1}{2}) \cdot ȳ

Other formulas in Incremental Increase Method category

Go Future Population at End of n Decades in Incremental Increase Method

P n = P o + n \cdot x̄ + (n \cdot \frac{n + 1}{2}) \cdot ȳ

Go Average Arithmetic Increase Per Decade given Future Population from Incremental Increase Method

x̄ = \frac{P n - P o - (n \cdot \frac{n + 1}{2}) \cdot ȳ}{n}

Go Average Incremental Increase given Future Population from Incremental Increase Method

ȳ = \frac{P n - P o - n \cdot x̄}{n \cdot \frac{n + 1}{2}}

Go Future Population at End of 2 Decades in Incremental Increase Method

P n = P o + 2 \cdot x̄ + (2 \cdot \frac{2 + 1}{2}) \cdot ȳ

How to Evaluate Present Population given Future Population from Incremental Increase Method?

Present Population given Future Population from Incremental Increase Method evaluator uses Last Known Population = Forecasted Population-Number of Decades*Average Arithmetic Increase in Population-(Number of Decades*(Number of Decades+1)/2)*Average Incremental Increase in Population to evaluate the Last Known Population, The Present Population given Future Population from Incremental Increase Method formula is defined as 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 Future Population from Incremental Increase Method using this online evaluator? To use this online evaluator for Present Population given Future Population from Incremental Increase Method, enter Forecasted Population (P_n), Number of Decades (n), Average Arithmetic Increase in Population (x̄) & Average Incremental Increase in Population (ȳ) and hit the calculate button.

FAQs on Present Population given Future Population from Incremental Increase Method

What is the formula to find Present Population given Future Population from Incremental Increase Method?

The formula of Present Population given Future Population from Incremental Increase Method is expressed as Last Known Population = Forecasted Population-Number of Decades*Average Arithmetic Increase in Population-(Number of Decades*(Number of Decades+1)/2)*Average Incremental Increase in Population. Here is an example- 275000 = 350000-2*25500-(2*(2+1)/2)*8000.

How to calculate Present Population given Future Population from Incremental Increase Method?

With Forecasted Population (P_n), Number of Decades (n), Average Arithmetic Increase in Population (x̄) & Average Incremental Increase in Population (ȳ) we can find Present Population given Future Population from Incremental Increase Method using the formula - Last Known Population = Forecasted Population-Number of Decades*Average Arithmetic Increase in Population-(Number of Decades*(Number of Decades+1)/2)*Average Incremental Increase in Population.

What are the other ways to Calculate Last Known Population?

Here are the different ways to Calculate Last Known Population-

Last Known Population=Forecasted Population-2*Average Arithmetic Increase in Population-(2*(2+1)/2)*Average Incremental Increase in Population
Last Known Population=Forecasted Population-3*Average Arithmetic Increase in Population-(3*(3+1)/2)*Average Incremental Increase in Population

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Present Population given Future Population from Incremental Increase Method Formula

​GoPresent Population given Future Population of 2 Decades by Incremental Increase Method Formula

​GoPresent Population given Future Population of 3 Decades by Incremental Increase Method Formula

Present Population given Future Population from Incremental Increase Method Example

Present Population given Future Population from Incremental Increase Method Solution

Present Population given Future Population from Incremental Increase Method Formula Elements

Other Formulas to find Last Known Population

Other formulas in Incremental Increase Method category

How to Evaluate Present Population given Future Population from Incremental Increase Method?

FAQs on Present Population given Future Population from Incremental Increase Method

Variable Name

GoPresent Population given Future Population of 2 Decades by Incremental Increase Method Formula

GoPresent Population given Future Population of 3 Decades by Incremental Increase Method Formula