Numerical and statistical skills 1 (Edexcel GCSE Geography A): Flashcards

Values increase/decrease together by same percentage

One value decreases as another increases by same %

How big or significant something is

How often something occurs

Split data into four equal parts

Divide data into five equal sections

Create 100 divisions of data

Convert % to decimal (÷100), then multiply by total

Divide first by second, then multiply by 100

(new - original) / original × 100

(original - new) / original × 100

Not dividing by the original number

Multiply or divide all parts by same number

Relative relationships, not absolute values