What on earth is ratio!?

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Offline stana

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What on earth is ratio!?
« on: 19/01/2008 18:55:52 »
Hey guys, i realy cant do maths, but ive been reading some stuff on diseases and such..and its given me a ratio on how many people are affected by the disease..here is the ratio

1:3000

Does that mean, ONE person in every 3000 will have this disease?

Thanks

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another_someone

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What on earth is ratio!?
« Reply #1 on: 20/01/2008 04:09:03 »
That is exactly what it means (although it should be taken as a general average - i.e. in one group of 3000 people maybe 2 people will have the disease, while in the next group, no person will have the disease, but as a population wide average, it means that 1 in every 3000 will have the disease.

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Offline stana

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What on earth is ratio!?
« Reply #2 on: 20/01/2008 11:56:57 »
Thanks..i always knew my brain was stll listening in maths!