The probability distribution of final grades (A=4, B=3, etc) for a certain college course is as foll
Question: The probability distribution of final grades (A=4, B=3, etc) for a certain college course is as follows.
| X(= Grade) | 0 | 1 | 2 | 3 | 4 |
| Probability | .02 | 0.08 | 0.39 | 0.35 | 0.16 |
a) Find the mean, variance and the standard deviation of X
b) What is the percentage probability of getting a 3.0 or better? Or a 2.5 or better?
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Solution: The solution consists of 1 page
Deliverable: Word Document
Deliverable: Word Document
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