# Systematic Sampling

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## Definition of 'Systematic Sampling'

Systematic sampling is a statistical method of selecting a sample from a population in which each member of the population has an equal chance of being selected. This is in contrast to random sampling, in which each member of the population has an equal probability of being selected, but not necessarily an equal chance.

Systematic sampling is often used when the population is large and the researcher does not have the time or resources to survey every member of the population. To conduct a systematic sample, the researcher first divides the population into equal-sized groups, called strata. Then, the researcher selects one member from each stratum at regular intervals. For example, if the population is divided into 10 strata and the researcher wants to select a sample of 100 people, the researcher would select one person from each stratum, starting with the first person in the first stratum and continuing until the sample is complete.

Systematic sampling is a relatively simple and efficient method of sampling, but it can be biased if the researcher does not select the strata in a way that is representative of the population. For example, if the researcher selects the strata based on convenience, the sample may not be representative of the population.

Another potential problem with systematic sampling is that it can be difficult to ensure that each member of the population has an equal chance of being selected. This is because the researcher must be able to identify all of the members of the population and divide them into equal-sized groups. If the researcher is unable to do this, the sample may not be representative of the population.

Despite these potential problems, systematic sampling is a widely used method of sampling. It is a relatively simple and efficient method that can be used to generate a representative sample of a population.

Systematic sampling is often used when the population is large and the researcher does not have the time or resources to survey every member of the population. To conduct a systematic sample, the researcher first divides the population into equal-sized groups, called strata. Then, the researcher selects one member from each stratum at regular intervals. For example, if the population is divided into 10 strata and the researcher wants to select a sample of 100 people, the researcher would select one person from each stratum, starting with the first person in the first stratum and continuing until the sample is complete.

Systematic sampling is a relatively simple and efficient method of sampling, but it can be biased if the researcher does not select the strata in a way that is representative of the population. For example, if the researcher selects the strata based on convenience, the sample may not be representative of the population.

Another potential problem with systematic sampling is that it can be difficult to ensure that each member of the population has an equal chance of being selected. This is because the researcher must be able to identify all of the members of the population and divide them into equal-sized groups. If the researcher is unable to do this, the sample may not be representative of the population.

Despite these potential problems, systematic sampling is a widely used method of sampling. It is a relatively simple and efficient method that can be used to generate a representative sample of a population.

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