Timeline for How on earth is a random sample representative of the entire population?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Feb 27 at 20:22 | comment | added | jbowman | Yes, it's called the Hypergeometric distribution. | |
| Feb 27 at 19:53 | comment | added | CommunityBot | Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. | |
| Feb 27 at 19:10 | comment | added | curiousCprogrammer1231 | @jbowman does there exist a distribution for this? | |
| Feb 27 at 18:57 | comment | added | jbowman | And... how likely is this to occur? Not every sample will represent the population well, but with a sample of 1,000 people for a situation like this, it's almost certain that it won't be far off, e.g., if 70% of the people in the population brush their teeth, it's extremely probable that the sample fraction will lie between 650 and 750. | |
| Feb 27 at 18:56 | answer | added | Happy Cretine | timeline score: 1 | |
| Feb 27 at 18:53 | comment | added | PBulls | That sample isn't, but the probability of randomly drawing all 1,000 brushers without getting a single one of the 9,000 non-brusher is so small you could repeat this experiment every second and likely not see that happen before all protons in the known universe have decayed. It is very, very, very unlikely to get this as a 'random' sample. | |
| S Feb 27 at 18:34 | review | First questions | |||
| Feb 27 at 19:53 | |||||
| S Feb 27 at 18:34 | history | asked | curiousCprogrammer1231 | CC BY-SA 4.0 |