Sampling Methods

Equal chance of choosing

• random number generator

• numbers from a hat

Choosing the easiest people = not representative of the population

• friends

• first 10 people you see

Random starting point, using a fixed interval

• every 3rd student on a class register

Sample sizes in proportion to who you’re polling

• School is 55% girls, 45% boys => sample should have the same percentage

Splitting into smaller groups

• boys and girls