stats- sampling

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11 Terms

1
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Population

entire group of subjects you want information on

2
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Sample

subgroup of subjects within the population

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Yes, the information of the sample is based on the population’s data.

T/F: Everything about the sample comes from the population

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N= population size

n= sample size

N= ?

n= ?

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What is an accurate representation of population and sample?

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6 Types of Sampling

  1. Simple Random Sampling

  2. Stratified Sampling

  3. Cluster Sampling

  4. Systematic Sampling

  5. Convenience Sampling

  6. Snowball Sampling

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<p>Simple Random Sampling</p>

Simple Random Sampling

Each member of population has an equal probability (cycle) of being selected

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<p>Stratified Sampling</p>

Stratified Sampling

The population is divided into subgroups (strata) based off certain characteristics and then random samples are taken from each strata.

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<p>Cluster Sampling</p>

Cluster Sampling

The population is divided into clusters that are randomly selected for inclusion; the samples DO NOT have equal chance

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Systematic Sampling

sampling of population is dictated by a certain rule system put in place ex) every 4th, every Wednesday class, etc.

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Snowball Sampling

Having existing subjects recruit people they know as future subjects