AyhamAug 23, 2026
Data Insights Population Calculation 📊
Data Insights Population Calculation 📊
Ayham
Learn how to solve a data insights problem by combining information from two different graphs to calculate the population of a country.
Data Insights Population Calculation 📊
Ayham
Learn how to solve a data insights problem by combining information from two different graphs to calculate the population of a country.
Chapters
00:00
Introduction
Introduction to the data insights problem using multiple graphs
00:28
Setting Up the Formula
01:00
Solving for Population
Transcript
00:00
Data Insights is very often about using information from more than one source.
00:05
And in this case the two sources are these two graphs over here.
00:08
And they're asking us to determine the population of country Z in the year 2003.
00:15
So I'm looking at these numbers over here and the total national health expenditure, which I read off is about 62, 63.
00:25
It's just halfway between these two numbers.
00:27
So I'm going to say 63 billion is equal to the national health expenditure per capita.
00:35
So each person spends about.
00:37
That's halfway through over there.
00:39
So that's about €300 per person times the number of people in that country.
00:45
So it's the total is the average expenditure per person times the number of people.
00:51
And so that's the formula that I'm going to have to use.
00:55
Now let me change the B to a number that is more usable.
00:58
So that's times 10 to the 9 equals 300 times n.
01:04
So I kind of, I'm going to cancel out 100.
01:07
I'm left with a 7 over here.
01:09
So we have 63 divided by 3 times 10 to the 7.
01:15
This is about how much?
01:17
About 21.
01:19
So let's just say 20 is enough times 10 to the 7.
01:24
So that's 200 times 10 to the 6 and 10 to the 6 is a million.
01:29
So it's 200 million.
01:31
Correct answer B.
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