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Chapter 13 concept map (Stastistics and Stiatistically Diagrams (Data (key…
Chapter 13 concept map
Stastistics and Stiatistically Diagrams
Data
key stages of Statistics
1.Collection of data
Organization of Data
3.Presentation of data
4.Analysis of data and conclusions
Classification
Non numerical
has no numerical value
Numerical value
Has numerical value
Discrete data
Can only take specific numerical value
continuous data
Cant take any numerical value
famous way of organizing data is tallying
Presentation
Bar chart
Use rectangular bars to represent data
lengths of bars represent frequencis of the data
broken line graph
horizontal axis represents date/time
vertical axis represent values of data
Often used to show how data change over a period of time
shown by lines