Question Description
Week 2 Assignment
Assignment 2 Instructor Comments:
1. Just multiply each value by its weight; add them together; then divide by the sum of all the weights.
2. Most everybody gets these right—just use the formulas in the book as a guide. Give the answers in 2 place decimals—not as a fraction.
3. As with item 2, most students get the first 5 correct and the last 2 wrong. Hint—the last two problems are mathematically the same as the 5th one. Why? Give the answers in 3 place decimals.
Question 1
- Compute the weighted mean for the following data.
Question 2
- If P(A) = 0.50, P(B) = 0.40, and P(A ∪ B) = 0.88, then P(B | A) =
Question 3
Six vitamin and three sugar tablets identical in appearance are in a box. One tablet is taken at random and given to Person A. A tablet is then selected and given to Person B. What is the probability that
- Person A was given a vitamin tablet?
- Person B was given a sugar tablet given that Person A was given a vitamin tablet?
- neither was given vitamin tablets?
- both were given vitamin tablets?
- exactly one person was given a vitamin tablet?
- Person A was given a sugar tablet and Person B was given a vitamin tablet?
- Person A was given a vitamin tablet and Person B was given a sugar tablet?
| Grading Criteria Assignments | Maximum Points |
| Meets or exceeds established assignment criteria | 40 |
| Demonstrates an understanding of lesson concepts | 20 |
| Clearly presents well-reasoned ideas and concepts | 30 |
| Uses proper mechanics, punctuation, sentence structure, and spelling | 10 |
| Total | 100 |
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