Concept · 4 steps · NESA MA4-DAT-C-01

Displaying Data in Graphs

A graph is just a picture of the numbers in a table. Pick the right picture and the story leaps out; pick the wrong one and you mislead everyone — sometimes on purpose.

1Where it comes fromOne dataset, three pictures — column, dot plot, divided bar. Switch and see. 2How to do itBuild a column graph from a frequency table, and label the axes properly. 3Where it gets trickyRight graph for the data type, and the chopped-axis trick that lies. 4Out in the wildReal surveys and temps — read the table back out of the graph.

← This concept rests on

Collecting & Organising Data
Frequency Tables

→ It unlocks

Interpreting Data in Graphs
Mean, Median, Mode & Range