Principles

• SAMPLING

  • Act of studying or examining only a segment of the

  population to represent the whole

  • Whatever findings we get for this segment of the

  population, we generalize to the total population
• Population can be studied through proper sampling techniques or methods.
• Sampling is the process of selecting representative number of elements from a population.
• Census is a complete enumeration of all items in the population, involving a great deal of time, money and energy.
• Undertaking a census survey, many times, is not possible.
• The sample must be selected to represent the entire population.
• Sometimes it is possible to obtain sufficiently accurate results by studying only a part of total population- sampling.