bio alevel help

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#1
thankss
Last edited by Hey its me; 5 months ago
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5 months ago
#2
This might just be me, but if fraction X have the disease, and fraction Y (of the X) have some type of this disease, the total fraction of the population that have that type is just given by XY, i.e. 1/500 * 1/1000 = 1/(500,000)...

Although I haven't considered any specifics that might apply biologically... anyway... answer might not be correct and someone who majors in Bio should probably give a better look.
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#3
(Original post by Callicious)
This might just be me, but if fraction X have the disease, and fraction Y (of the X) have some type of this disease, the total fraction of the population that have that type is just given by XY, i.e. 1/500 * 1/1000 = 1/(500,000)...

Although I haven't considered any specifics that might apply biologically... anyway... answer might not be correct and someone who majors in Bio should probably give a better look.
That's what i did but i thought it was wrong since the percentage is really small
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5 months ago
#4
(Original post by Hey its me)
That's what i did but i thought it was wrong since the percentage is really small
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#5
(Original post by Callicious)
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5 months ago
#6
(Original post by Hey its me)
Mmm...

I'd stick to that 1/500,000 or whatever. It's a small number to be sure, but yeah...

I mean if the UK has like, 80m people, that's about 160 people every second who have it. It clears up within 2 weeks apparently according to Google, which gives something like 4,200 cases a year (assuming an average of 160 people having it every 2 weeks...) which is indeed a pretty small number for something that common...

Anyway, someone else will have to chime in. Without knowing anything else about the matter I can only say that you've got X with a disease and a fraction Y of that X that have a type of that disease, so the total fraction is the product XY, which is that 1/500,000 which is small.
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