1.5 population and sample
population (Population) mean any unit all units of our interest will be to study the unit is able to provide information
to us, such as interest income, an average of civil servants in the province of Surin, so
.The population is that civil servants are all those who work in the province of Surin.
Characteristics of population studies, there were probably from the bite (finite population), so the example above, or it can be
.Infinite loop plate (infinite population), such as a study on the performance of one of the drugs, the population would be
performance test results of the drug in patients using the drug, which was unable to indicate the dish loop.
For example, some units (Sample) means a unit of a population that is, facts which we are interested, for example, the average income of the interest education
civil servants who are active in the province of Surin, so the population is civil servants all
.People who are active in the province of Surin, and examples are the civil servants someone painted in Surin province.
การแปล กรุณารอสักครู่..