Probability Of Events

Part 1- Data Table

Average Number of Sleep Per Night

	Less Than or Equal To 6 Hrs.	Greater Than 6 Hrs.	Total
Student	2	3	5
Non-Student	3	2	5
Total	5	5	10

Part 2

1. What is the probability that randomly selected students slept less than an average of 6 hours per night.

1. What is the probability that a randomly selected is a student?

1. What is the probability that a randomly selected student slept greater than an average of 6 hours a night?

1. What is the probability that a randomly selected person who sleeps greater than a average of 6 hours a night is not a student?

1. What is the probability that a randomly selected person is not a student or slept less than an average of 6 hours a night?