Unit 3 –Problem Solving

AO5 –Create suitable graphs and charts Summer term 2010 D Garey

Graphs/charts

• Choose 3 different types for DISTINCTION • Do not discuss what each graph shows at this point • You MUST justify your choice of each type of graph • Don’t touch line graphs unless you have continuous data!

Summer term 2010 D Garey

Pie Charts

• Good for showing percentages • Easy to read • Very visual • Not so great for comparisons • Make sure they are fully labelled, with values 10% 15% 15% 2%

Popular Footie Team s

58% Summer term 2010 D Garey Villa Chelsea Liverpool Man U Arsenal

Column Charts

• Clustered column is better for comparing values across categories

90 80 70 60 50 40 30 20 10 0 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Favourite Tipples

• Stacked column – compares the contribution of each value to the total in the category 12 10 8 2 0 6 4 beer vodka w ine

drink type

cider

East West North

females males Summer term 2010 D Garey

Scatter Plots

• Compares pairs of values • Line of best fit can signify a correlation –positive and negative depending on trend • “-er” statements can be made i.e. the older the person the less time spent on the Wii Summer term 2010 D Garey