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2.1.1 Populations, samples and sampling techniques

The [     ] is the complete set about which information is required. Each member is a sampling unit.

A

Excluded groups cannot be selected, causing under-representation.

B

In simple random sampling, every possible sample of the required size has an equal selection chance. In systematic sampling, units are selected at regular intervals.

C

360600×50=30\frac{360}{600}\times 50=30600360​×50=30 students.

D

The population is the complete set about which information is required. Each member is a sampling unit.

2.1.1 Populations, samples and sampling techniques Flashcards

  1. A Level
  2. /Maths
  3. /2.1.1 Populations, samples and sampling techniques

Flashcards for AQA A Level Maths 2.1.1 Populations, samples and sampling techniques, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 20 cards, matched to the AQA A Level Maths (7357) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.