Christine Johnston

This page lists questions and answers that were posted by visitors named Christine Johnston.

Questions

The following questions were asked by visitors named Christine Johnston.

I am enrolled in an online Math 125 class. I posted this question earlier in the week and never got a response, so here I am! I am just not understanding these questions. I made the tree diagram as suggested and put all the information at the bottom how I...

Answers

The following answers were posted by visitors named Christine Johnston.

a certain virus infects one in every 200 people. A test used to detect the virus in a person is positive 80% of the time if the person has the virus and 10% of the time if the person does not have the virus. (This 10% result is called a false positive.) L...