Suppose the grading for a course project can only have 6 possible outcomes
tutor4helpyou (Not rated)
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Suppose the grading for a course project can only have 6 possible outcomes; 100, 90, 80, 70, 60, 50, and 0. Let the random variable X be the scores on the project. Suppose X has the following distribution:
X | P(X=x) |
100 | 0.1 |
90 | 0.25 |
80 | 0.3 |
70 | 0.15 |
60 | 0.1 |
50 | 0.09 |
0 | 0.01 |
a. What is the probability that X is AT MOST 70?
b. What is the probability that X is AT LEAST 80%?
c. What is the probability that X is MORE than 80?
d. What is the probability that X is LESS than 70?
e. Compute the expected value for this random variable (see page 269 of text).
- 9 years ago
Suppose the grading for a course project can only have 6 possible outcomes
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