Question

A country has a population of 1,231,994 as of December 31, 2017. On December 31, 2018, you are tasked with calculating the growth rate over the year. The country experienced 128,240 births and 103,412 deaths. The net migration was 12,388. What was the growth rate?

Answer 1

Answer:

The growth rate would be 3.021% ( approx )

Step-by-step explanation:

Since,

Change in Population Size = (Births + Immigration) - (Deaths + Emigration)

= Births - Deaths + Immigration - Emigration

∵ Immigration(people coming into an area) - Emigration (people leaving an area) = Net migration

So, Change in Population Size = Births - Deaths + Net migration,

Here, Birth = 128,240, deaths = 103,412 and net migration = 12,388,

Thus, Change in Population Size = 128,240 - 103,412 + 12,388

= 37,216,

Also, growth rate = $\frac{\text{Change in population}}{\text{Original population}}\times 100$

We have, original population =  1,231,994

Hence, growth rate = $\frac{37216}{1231994}\times 100$

$=\frac{1860800}{615997}$

$=3.021\%$