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Some students carried out a field study on sources of energy by sampling the households around their school. i)Identify two sampling techniques the students may have used...

      

Some students carried out a field study on sources of energy by sampling the
households around their school.
i)Identify two sampling techniques the students may have used during
the study.
ii)Give three advantages of sampling the households for the study.

  

Answers


Davis
i)-Stratified
-Random
-Systematic

ii)-To save on time.
-To reduce bias.
-To allow for detailed study.
-To reduce cost.
Githiari answered the question on September 16, 2017 at 06:19


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