OCR GCSE Geography B · J384
Specification 9.2 · Paper 1, Paper 2, Paper 3
Revise: Common and Specialized Geographical Graph TypesProportional symbols vary in size according to the quantities they represent. On a map, a symbol's position identifies the location and its size communicates a value, such as population or traffic count. Unlike a pictogram, which repeats equal-sized symbols, a proportional-symbol display changes the size of a symbol.