0 items
- Description
Week 3 LT Assignments
- The events X and Y are mutually exclusive. Suppose P(X) _ .05 and P(Y) _ .02. What isthe probability of either X or Y occurring? What is the probability that neither X nor Y willhappen?
- Let P(X) _ .55 and P(Y) _ .35. Assume the probability that they both occur is .20. Whatis the probability of either X or Y occurring?
- Suppose P(X1) = .75 and P(Y2|X1) = .40. What is the joint probability of X1 and Y2?
- Refer to the following table.
- Determine P(A1).
- Determine P(B1|A2).
- Determine P(B2 and A3).
- Berdine’s Chicken Factory has several stores in the Hilton Head, South Carolina, area. Wheninterviewing applicants for server positions, the owner would like to include information onthe amount of tip a server can expect to earn per check (or bill). A study of 500 recentchecks indicated the server earned the following amounts in tips per 8-hour shift.
Amount of Tip Number
$0 up to $ 20 200
20 up to 50 100
50 up to 100 75
100 up to 200 75
200 or more 50
Total 500
- What is the probability of a tip of $200 or more?
- Are the categories “$0 up to $20,” “$20 up to $50,” and so on considered mutuallyexclusive?
- If the probabilities associated with each outcome were totaled, what would that total be?
- What is the probability of a tip of up to $50?
- What is the probability of a tip of less than $200?