Question

Please help I am just so confused.
Tests for medical conditions are not usually 100% accurate. A certain form of cancer affects one in 10,000 people. The test for it gives a true positive result in 98% of cases and a true negative result in 99% of cases.
a) Show that the risk of having this form of cancer if you tested positive is approximately one in 100.
b) Show that if you test negative for this condition, it is almost certain that you do not have it

Answer 1

how many people got tested?

Answer 2

That is the whole question

Answer 3

That is the whole question