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Card 1 of 24

Contrast a population, a sample, and a census.

A

Choosing individuals who are easiest to access at the time of the study.

B
  • Population: the whole group of interest.
  • Sample: a subset of the population.
  • Census: data collected from every population member.
C

If the sampling interval is k=5k=5k=5 and the random start is 444, the first three members selected in a systematic sample are 4, 9, and 14.

D
stratum sizepopulation size×overall sample size \frac{\text{stratum size}}{\text{population size}} \times \text{overall sample size} population sizestratum size​×overall sample size

Card 1 of 24

Data Collection Flashcards

  1. A Level
  2. /Maths
  3. /Data Collection

24 flashcards on Edexcel A Level Maths Data Collection: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards