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Overview of Statistics - Coggle Diagram
Overview of Statistics
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Descriptive statistics
organizing, summarizing, and presenting data in an informative way
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the average age of a student at this college is 22,5
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collecting, organizing and interpreting data
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Variable (biến số)
age, number of siblings/ credits taken in the current semester
qualitative
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4 scales of measurment
Norminal
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cannot be added, subtracted, divided or multiplied.
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Interval
Intervals between scale points are meaningful (e.g.
difference between 30°C and 20°C =
difference between 15°C and 5°C)
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Ratio
Ratio data have all properties of nominal, ordinal and
interval data types
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