| Tag | Value |
|---|---|
| file | Probability_uva-expected-value-1065-en_uva-expected-value-1065-en |
| name | uva-expected-value-1065-en |
| section | Probability/Elementary Probability/Random variables/Expected value |
| type | schoice |
| solution | FALSE, FALSE, TRUE, FALSE |
| Type | Conceptual |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 1.363 |
| p-value | 0.8731 |
A class has 200 students. Below is the distribution of hours of study in a day.â
————- —— —— —— —— —— —— —— —— —— Study hours 0 1 2 3 4 5 6 7 8 Chance 0.08 0.14 0.25 0.18 0.13 0.11 0.07 0.02 0.02 ————- —— —— —— —— —— —— —— —— ——
What then is the expected value of this group’s study time?