Results from Drug Tests of Job Applicants. Find the probability of each of the events.

	Positive Test Result (Test shows drug use)	Negative Test Result (Test shows no drug use)
Subject Uses Drugs	45	7
Subject Does Not Use Drugs	34	478

1. Find the probability of randomly selecting someone who received a positive test result. __________ROUND TO 4 DECIMAL PLACES.
2. Find the probability of randomly selecting someone who uses drugs OR received a positive test result. __________ROUND TO 4 DECIMAL PLACES.
3. Find the probability of randomly selecting someone who uses drugs GIVEN they received a positive test result._______ _ROUND TO 4 DECIMAL PLACES.

ENTERING YOUR ANSWERS: List the answers in the textbox with commas in between. For example: answers for parts 1, 2, 3 should look like 0.1234, 0.2468, 0.3690 in your textbox.