| Tag | Value |
|---|---|
| file | Probability_uva-elementary-probability-950-en_uva-elementary-probability-950-en |
| name | uva-elementary-probability-950-en |
| section | Probability/Elementary Probability |
| type | schoice |
| solution | FALSE, FALSE, TRUE, FALSE |
| Type | Conceptual |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 1.995 |
| p-value | 0.7772 |
In a class there are 50 students. Each time, the teacher randomly chooses one student to answer one question and then the teacher puts the chosen name not back. There are a total of three questions. Marja defines the following events:Ê
* A = she is chosen to answer the first question,‖ she says.
* B = she is chosen to answer one of the three questions. Then what is the probability that Marja has to answer the first question, given that she is already chosen to answer one of the three questions?