Wednesday, January 15, 2014

SUMMARY || 13.1.14

Main topic: Statistics

Bar graphs
Discrete: only definite values
Continuous: all values within range

Frequency Polygon: to compare the trend of 2 histograms
How to draw? Split the top of each bar of the graph in half, connect the middle points of the top of the bars together.

Figure 1.1 - Frequency Polygon (source: Wikibooks)

Dot diagrams
Rearranging of data in ascending order which makes it easier to find median term.

Things important in graphs
- scale
- accuracy

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