Flashcards
Key words and definitions
Flashcards do conjunto (13)
- 1PopulationA collection of individual items
- 2SampleSelection of individual members or items from a population
- 3Finite populationA population where you can count the individual members
- 4Infinite populationA population where there are too many members to count
- 5Sampling unitIndividual member of a population
- 6Sampling frameList of all sampling units, items in a population - a list, map, database etc. (use context)
- 7StatisticA quantity calculated solely from observations in a sample
- 8Sampling distributionGives all possible values of the statistic and the probability of each occuring
- 9CensusInformation is obtained from all members of the population
- 10Sample surveyAn investigation using a sample
- 11BiasAnything that occurs when taking a sample which prevents it being representative of the population
- 12Simple Random SamplingEvery member of the population has an equal chance of being selected
- 13Population parameterAny measurable characteristic of a population
Informações
- Descrição
- A Levels Stats (6. Population and Samples) FlashCards sobre Key words and definitions, criado por Elizabeth Carr em 30-04-2014.
- Criado por
- Elizabeth Carr
- Visualizações
- 105
- Tags
- Avaliação