Statstics29 cards

Tagged as: religion

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Columns

Variables

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Rows

Individuals

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Population

All subjects under consideration

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Sample

Every one selected for the study

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Perameter

Counting ever person in the population

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Statistic

Coating the people in the sample

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Goal

To take a sample to learn about it.

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Types of variables (3)

Categorical Quatitative

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Categorical

Groupsnor category names

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Quantitative

Gender religion letter grade

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Explanitory

Partially explain value of other ( independent)

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Response

Value partially depends on other

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Census

Every member of a population is measured or surveyed

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Frudi

The sample needs to be represented by the entire poulatiin

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Simple random sample

Everyone has an equal chance of being selected for the trial or study

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Descriptive

Use sample mean or sample population to deceive the sample

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Inferential

Use sample mean or sample population to infer something abiut the population mean or population proportion

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Bias

When the sample is not represented of the population

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Non response

Some members of th population fuse to response

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Response

Some members of the population provide incorrect information

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Sampling frame

List of units in which the sample is selected

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Normal curve looks like:

No outlyers Unimodal Symmetrical

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Self-selected sample

Only people that care will participate

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Randomized expirements

Researchers randomly assign participants to participate in one condition or another

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Observational study

You observe while the research does all the work

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Double blinding

Neither the researcher or the participant knows who is getting the treatment and who is getting the drug.

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Probability

Between 0 and 1

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Random circumstance

Outcome is unpredictable but observable

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Sd

Is the measure of spread