Maths Reminder

[brainiac]

I keep reading the figures for the number of people vaccinated in a country and what percentage of its population that is. For example:

Doses 28.2m % of population 38.7

Would someone please remind me of the formula for working out what the total population is - it's really annoying me!

[Peter Pedant]

take 60m

they are talking about the adult pop - and that can vary ( Algeria and Egypt it is 50% for rather obvious reasons)

The herd effect should deffo be detectable ( kink down in the curve)

[Peter Pedant]

actually it doesmt matter a foo what the denom is
the fact is that we are outstripping all euro zone countries

and by God dont they know it

the realtest is whether they have a third wave and we dont

[Prudie]

Can you write what you mean by "Doses 28.2m % of population" in words as that reads 28.2 million percent which doesn't make sense. Once clear what you are asking the formula is easy to tell you.

[brainiac]

PP - I'm looking for a maths answer/formula

[brainiac]

Doses 28.2 million
% of population vaccinated 38.7
Total population is?

[sunny-dave]

Divide doses by the percentage vaccinated and multiply by 100

(28.2/38.7)*100 = 72.8

[emmie]

total population is 65 million give or take.

[Prudie]

28.2m = 37% of population
28.2m/37 = 1% of population
So 28.2/37 X 100 = 100% of population

[brainiac]

Thanks, dave, thought it was that, but the above figures are for UK - and UK doesn't have a population of 72.8m !

[sunny-dave]

It's 38.7 of the adult population - and doses includes second doses too.

[sunny-dave]

Current Stats :

https://coronavirus.data.gov.uk/details/vaccinations

[brainiac]

Ah, that makes sense. But the newspaper definitely says 38.7 is 'percentage of total population'.

[Peter Pedant]

erm didnt you muvva tell you not to believe everything you read in newspapers

the let out anyway is % pop which is adult