Question
Professor Sanchez has been teaching Principles of Economics for over 25 years. He uses the following scale for grading. Grade Numerical Score Probability A 4
Professor Sanchez has been teaching Principles of Economics for over 25 years. He uses the following scale for grading.
| Grade | Numerical Score | Probability |
|---|---|---|
| A | 4 | 0.100 |
| B | 3 | 0.300 |
| C | 2 | 0.430 |
| D | 1 | 0.095 |
| F | 0 | 0.075 |
a. Convert the above probability distribution to a cumulative probability distribution. (Round your answers to 3 decimal places.)
b. What is the probability of earning at least a B in Professor Sanchez's course? (Round your answer to 3 decimal places.) c. What is the probability of passing Professor Sanchez's course? (Round your answer to 3 decimal places.)
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Introduction To Probability Models
Authors: Sheldon M Ross
10th Edition
0123756863, 9780123756862
