Statistics

Created by: Misspr28
Created on: 13-06-15 12:18

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Statistics: Types of Sampling
- Random Sampling
  - This sample allows everyone in the population to have an equal chance of being picked.
  - Random Number Generator
  - Random Number table
- Systematic sampling
  - Using a sampling frame, a starting point is chosen at random and thereafter regular intervals
  - For example, choosing every 15th house of 120, to obtain 8 houses.
- Cluster sampling
  - Units are chosen in clusters that the population is chosen in, these are chosen at random
  - For example, choosing households of various streets
  - The cluster should be dissimilar so that the sample must be representative of the population
- Quota sampling
  - Sampling a selection of the population. Quotas specify a certain subgroup of the population
  - For example, 50 females, aged 45-50

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