| Tag | Value |
|---|---|
| file | Probability_uva-rules-for-expected-values-926-en_uva-rules-for-expected-values-926-en |
| name | uva-rules-for-expected-values-926-en |
| section | Probability/Elementary Probability/Random variables/Rules for expected values |
| type | schoice |
| solution | TRUE, FALSE, FALSE, FALSE |
| Type | Conceptual |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 2 |
| p-value | 0.5905 |
John just graduated. There are 1,000 freshmen on the waiting list for his room, but only one of them is randomly chosen to take over John’s room. John hopes this person likes to party and also snores. Below is a table in which the 1,000 students are categorized.
—————– ——– ————- ——– Snores Snores Not Snores Total Party animal 130 120 250 No party animal 230 520 750 Total 360 640 1000 —————– ——– ————- ——–
What is the probability that if you randomly choose a person who does not snore but is is a party animal?