The answer depends on the underlying variance (standard deviation) in the population, the size of the sample and the procedure used to select the sample.
The chief aim is to find a representative sample; that is, a sample which reflects the properties of the population, as a whole.
the participants are representative of the population they are interested in studying
a stratified random sample
simple random sample is to select the sample in random method but systematic random sample is to select the sample in particular sequence (ie 1st 11th 21st 31st etc.)• Simple random sample requires that each individual is separately selected but systematic random sample does not selected separately.• In simple random sampling, for each k, each sample of size k has equal probability of being selected as a sample but it is not so in systematic random sampling.
There is no sampling method that will select the exact population.
The answer depends on the underlying variance (standard deviation) in the population, the size of the sample and the procedure used to select the sample.
The popo ulation in the people/items you have collected data from. if you are sampling, the its the population of which you select your sample from
A sample of a population that has been selected using a pattern is when a researcher selects every 10th person from a list or sampling frame. For example, if a researcher wants to study the attitudes of employees in a large company, they may select every 10th employee from the company directory. This method ensures a systematic pattern in selecting the sample.
Sure it can. But in the survey business, the trick is to select your sample carefully so that they'll be equal, i.e. a sample that is accurately representative of the population.
The chief aim is to find a representative sample; that is, a sample which reflects the properties of the population, as a whole.
A sample frame is a list of population units/elements commonly referred to as sample members from which to select units/elements to be sampled. Regards Siphokazo Mondliwa
to select a random sample you pick them at random
a stratified random sample
the participants are representative of the population they are interested in studying
Select the sample so that it will have the same percentages of people that are men and women as are in the system, and also match the percentage based on educational background and ethnicity
a stratified random sample