Question 1061642
Use a large number, like 60000
====D+=====D-======
T+===90====5990=======6080
T-===10=====53910=====53920
Total=100=====59900=====60000
This has 90/100 or 90% of people who have the virus  and 10% of them who don't have it.
Given they test positive (6080), 90 have the virus (0.0148).
Given that they test negative (53920), 53910 do not have it (99.98%).