You need to create a heterogeneous mix based on the criteria you deem important.
Because without representative sample, your results will not be valid.
A sample that accurately reflects the characteristics of the population as a whole
Take a simple random sample.
A representative sample is one where the statistics of the sample are the same as the statistics for the parent population.
Well, if your sample does not represent the larger sample, you'll certainly not get a valid result ... For example, if you're studying pregnancy and your sample includes men - The whole idea of "representative' sample is fuzzy and often gives interesting errors.
A sample is any subset of the total population. A representative sample is one that is chosen so that its characteristics are similar to that of the population.
Many statistical statements for a population which are based on a sample are not valid if the sample is not representative.
Because without representative sample, your results will not be valid.
A representative sample is a randomly selected subset of the population.
A simple random sample.
The likely word is representative (someone chosen to act in one's place).The adjective representative means having the same qualities of a group or whole.(e.g. a representative sample)A less-likely possibility is the word repetitive, meaning repeated.
A representative sample accurately reflects the characteristics of the population it is drawn from. This means that the sample is chosen in a way that each member of the population has an equal chance of being included in the sample, which helps to ensure that the findings can be generalized back to the population.
The subset of the population chosen by the investigator for a study is known as the sample. Sampling involves selecting a smaller group of individuals from a larger population to make inferences or generalizations about the broader population. The goal is for the sample to be representative of the population so that findings from the study can be applied more broadly.
A sample that accurately reflects the characteristics of the population as a whole
It is called a representative sample.
A subset of people chosen to represent a larger group in a psychological study is called a sample. This sample should be carefully selected to be representative of the population to which researchers want to generalize their findings. Techniques such as random sampling or stratified sampling are commonly used to ensure the sample is a true representation of the population.
Take a simple random sample.