Investigations Summary

Investigations and Sampling

Summary

the use of statistics involves the gathering of data.

this data is then processed, organised and displayed.

finally the data is presented, discussed and conclusions are made.

Key Skills
  • plan the investigation
  • choose an appropriate sample
  • design an effective questionnaire or interview
  • display the data clearly
  • process and analyse the data
  • report on the results

Vocabulary

census, population, sample, bias, statistics, target population,data, random sample, random number, systematic sampling, cluster sampling, stratified sampling.