Question
16. The number of tests a student takes in one day during finals week is a random variable with the following probability distribution: X P(X)
16. The number of tests a student takes in one day during finals week is a random variable with the following probability distribution:
| X | P(X) |
| 0 | 0.05 |
| 1 | 0.20 |
| 2 | 0.40 |
| 3 | 0.25 |
| 4 | 0.05 |
| 5 | 0.05 |
a. Find the probability that a student will take 3 or more tests in one day during finals week.
b. Determine the mean and the variance of the number of tests students have to take in one day during finals week.
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The Digital Transformation Of Auditing And The Evolution Of The Internal Audit
Authors: Nabyla Daidj
1st Edition
1032103914, 978-1032103914
