Question

We have 500 mice and want to determine how effective a given cure for a virus. 10 mice are taken from the group and injected with our cure. 7 mice were cured. According to this experiment, how many mice should be cured?

Answer 1

350

Explanation:

if you take 500-10 that gives you 490 left to cure if 7 of those 10 are cured the 350 out of the total mice would be cured. if it is not the correct answer i am sorry that is just how I was taught to do it.