©G Dear 2010 – Not to be sold/Free to use Menu Applied Mathematic (Preliminary General 1) Column Graphs ge 2 Page 3 Page 4 Page 5 Page 6 Data and Statistics Displaying Data Stage 6 - Year 11 Press Ctrl-A ©G Dear 2010 – Not to be sold/Free to use

Column Graphs Data Types Summarizing and Displaying Data 1. Categorical data is best displayed with a column graph or

Line Graphs/Histograms Summarizing and Displaying Data data that is continuous (without breaks) in a selected range. Data Types data that has a finite number of values in a selected range. 2. Numerical comes in two types. a) Continuous best displayed with a line graph. b) Discrete best displayed with a histogram. ? ?

Frequency Distribution Table Column Graphs Summarizing and Displaying Data - Class Survey Column graphs are great For Categorical data AFL NRL Soccer Tennis Basketball Other 5 10 15 20 25 Frequency Distribution Table Sport Tally f AFL 11 15 14 16 17 13 21 18 19 12 1 10 24 23 25 3 22 4 2 7 9 5 6 8 20 NRL 11 12 13 14 15 16 18 21 1 17 19 10 22 23 25 24 20 3 5 6 2 4 9 8 7 Soccer 11 15 16 19 14 18 17 21 13 10 1 12 6 25 5 2 24 4 3 7 9 23 20 8 22 Tennis 11 17 16 18 15 19 21 10 1 14 12 13 24 25 23 2 6 5 3 22 7 4 20 8 9 Basketball 11 17 16 18 15 19 21 10 14 1 12 13 24 23 25 22 5 4 3 2 7 6 20 8 9 Other 11 17 18 21 16 19 10 1 15 12 14 13 25 24 4 6 5 3 2 23 7 22 8 9 20 The columns don’t touch The columns can be different colours.

Line Graphs Summarizing and Displaying Data Age Height Line graphs are great for continuous data. 18 19 20 21 22 23 24 25 26 27 28 29 76.1 77.0 78.1 78.2 78.8 79.7 79.9 81.1 81.2 81.8 82.8 83.5 Age and height are both continuous. 18 20 22 24 26 28 19 21 23 25 27 78 80 82 84 Height (cm) Age (years) 29

Dot Plots Summarizing and Displaying Data They are useful for small sets of data Exercise: Roll a dice and record on a dot plot. 1 2 6 www.pptalchemy.co.uk/Dice2.html Free from 3 5 4 Double Click 1 2 3 4 5 6

North 2000, East 3000, South 1500 and West 2500. Pie Charts Summarizing and Displaying Data They are useful for comparing sets of data A chicken factory wants to compare the daily production from its four farms. North 2000, East 3000, South 1500 and West 2500. We need to convert these to angles Total = 2000 + 3000 + 1500 + 2500 = 9000 2000 9000 3000 9000 North = x 360o = 80o East = x 360o = 120o 1500 9000 2500 9000 South = x 360o = 60o West = x 360o = 100o

North 800, East 120o, South 60o and West 100o. Pie Charts Summarizing and Displaying Data North 800, East 120o, South 60o and West 100o. North 80o West 100o East 120o East 120o