Organizing Data PDF

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Summary

How to organize data, including tables, figures, histograms, etc. Taught by Professor Zahnen....

Description

Organizing data ● Tables and figures  Characteristics to look for ● Center: one number to represent all data ● Variation: differences in data ● Distribution: shape of data ○ Bell curve is normal distribution ● Outliers: data far away from everything else  Tables and figures ● Frequency distributions (table) ○ Categories (classes) must be evenly spaced and cannot overlap ■ Lowest number in a class is the lower class limit ■ Highest is the upper class limit ■ Class width is difference between successive lower or upper limits ○ Every piece of data must fall into only one class Class

Frequency

21 to 25 1 26 to 30 3 31 to 35 4 36 to 40 2 41 to 45 1  ● Histograms (figure) ○ Fancy name for a bar graph...