Sampling (AQA GCSE Maths): Flashcards

The complete group of individuals or items you want to study

A smaller group selected from the population to represent it

Sample where every population member has equal chance of selection

Surveying a sample costs much less than surveying whole population

Gathering info from smaller group takes much less time

Write names on paper, put in hat, randomly draw needed amount

Assign numbers to all, use random generator to select sample

May not accurately reflect population, affected by unusual responses

Sample members too similar, lack diversity to represent population

Larger samples generally provide more reliable results