1.5 ประชากรและตัวอย่าง ประชากร (Pop

1.5 Population and sample: demographic (population) refers to the various units of the things we are interested in the study were: a unit that can provide any information to us, such as interest income to the government in Surin so
.A population is all the people in government. Work in Surin.
Characteristics of the study population may have limited the number of (finite population) in the above example, or may have
.The number of infinite (infinite population) as a study on the effectiveness of the drug. Population will be.
The results of testing the effectiveness of the drug in patients using this drug. Which can not be said to you. Amount of all
.Sample (sample) refers to the unit, some units of the population to the facts that we do not do: study the average official group. Work in Surin. So are all officials population
.People working in Surin and samples. Some people in the government. Work in Surin.

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.

1.5 population and sample population
(Population) means that all units are units of things that we are interested in the study, it will be the unit
can provide information, such as interest income and we have an average of a Government official in Surin province, so
It is a population of officials, all work in Surin Province
the characteristics of the study population may have to be in the forest to bite (finite population), as identified in the above example may be a
orThat's infinity (infinite population), such as a study on the performance of the drug one of the test results
population will be a performance of the drug in patients who are not able to use this drug to tell the forest all
Example (Sample) means that some units of the population units, will be the fact that we are interested
studies such as interest income, an average of a Government official, the work is in Surin province, so population is all officials
people who work in it, in Surin, and examples are some of the government's work in Surin Province.