# Statistics

Simple random sampling

Systematic or interval sampling

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Stratified sampling

Cluster sampling

Stratified sampling question

Range

Quarters and quartiles

Interquartile range

Deviations

Mean deviation

Why do we divide by ānā1ā?

Using your calculator to find statistical measures

Changing into statistical mode

Changing your calculator into statistical mode

Clearing the statistical memory

Inputting the data

Finding statistical information