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ap stats

ej p Englisch 11 Folien

Folien in diesem Satz (11)

  1. What is the population

    • The population in a statistical study is the
    • entire group of individuals we want
    • information about.The population in a statistical study is the
    • entire group of individuals we want
    • information about.

  2. What is a census

    • A census collects data from every
    • individual in the population.

  3. simple random sampling

  4. systematic

  5. Folie 5

  6. What is a sample

    • A sample is a subset of individuals in the
    • population from which we collect data.

  7. What is a convenience sample

    • Convenience sampling selects
    • individuals from the population who
    • are easy to reach (from the perspective
    • of the researcher).

  8. Stratified Random Sampling (SRS)

    • One of the most common alternatives to
    • SRS is called stratified random sampling.
    • This method involves dividing the
    • population into non-overlapping groups
    • (strata) of individuals who are expected to
    • have similar responses, sampling from
    • each of these groups, and combining
    • these “subsamples” to form the overall
    • sample.

  9. strata

    • Strata are groups of individuals in a
    • population who share characteristics
    • thought to be associated with the
    • variables being measured in the study.

  10. Stratified Random Sampling (SRS)

    • Stratified random sampling selects a
    • sample by choosing an SRS from each
    • stratum and combining the SRSs into
    • one overall sample. This works best when the individuals
    • within each stratum are similar
    • (homogeneous) with respect to what is
    • being measured and when there are large
    • differences between strata.

  11. cluster samples

    • A cluster is a group of individuals in the
    • population that are located near each
    • other.
    • Cluster sampling selects a sample by
    • randomly choosing clusters and
    • including each member of the selected
    • clusters in the sample.Cluster sampling is used for practical
    • reasons as it often saves time and/or
    • money.
    • The individuals within each cluster
    • should be heterogenous (mirroring the
    • population), and clusters should be
    • similar to each other in their
    • composition.
    • Each cluster is like a mini-population.

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Folienset am ap stats, erstellt von ej p am 30/09/2022.
Erstellt von
ej p · Sep 2022
Aktualisiert
30 Sep 2022
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