A test for a virus correctly identifies someone who has the virus (by returning a positive result) 99% of the time. The overall population is 1,000,000 people. The test correctly identifies someone who does not have the virus (by returning a negative result) 99% of the time. It is known that 0.5% of the population has the virus. A doctor decides to treat anyone who tests positive for the virus. Is this a good decision?
Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
`It is known that 0.5% of the population has the virus`
`The overall population is 1,000,000 people`
how many people have the virus?
Not the answer you are looking for? Search for more explanations.
0.5% = 0.005
multiply 0.005 by 1 million
yep so 995,000 don't have the virus
`A test for a virus correctly identifies someone who has the virus (by returning a positive result) 99% of the time`
so if you have the virus, then there is a 99% chance that the test gets it right
that means 0.99*5000 = 4,950 people will get tested positive (the ones who have the virus)
1% will test negative
0.01*5000 = 50
`The test correctly identifies someone who does not have the virus (by returning a negative result) 99% of the time`
99% of (total who don't have virus) = 0.99*995,000 = 985,050
what goes in the box with the question mark