There are 10 000 student athletes.
5 percent of them use illegal drugs.
There is a drug test with the following accuracy:
IF a person is taking drugs,
   
IF a person is NOT taking drugs
THEN there is a 93 percent chance the test will be positive
THEN there is a 95 percent chance the test will be negative

Attachment), answer the following questions:

1. How many of the students will be true positive?  (An integer between 0 and 10 000)

2. How many of the students will be false positive?  (An integer between 0 and 10 000)

3. How many of the students in all will test positive?  (An integer between 0 and 10 000)

4. Suppose a person tests positive.  What is the probability that person uses drugs? (a probability between zero and  1)