Aug 22 2021 12:23 AM - edited Aug 22 2021 12:23 AM
Hello Everyone,
I need to find out three things:
1. How many people have taken at least one test?
2. How many people have taken both tests?
3. How many people have taken neither tests.?
Please help..??
Here is a attached file..
Aug 22 2021 06:44 AM