Maths AA Topic 4 - Stats and Probability

Simple Random Sampling

A statistical technique where every member of a population has an equal chance of being selected for the sample, ensuring unbiased representation.

Convenience Sampling

Participants are selected based on their easy availability and proximity to the researcher, often leading to biased results.

Systematic Sampling

A sampling method where members of a population are selected at regular intervals from a randomly ordered list, ensuring a structured approach to sample selection.

Stratified Sampling

A sampling method that involves dividing a population into distinct subgroups and then randomly selecting samples to ensure representation of key characteristics consistent with ratios in the wider population.

Quota Sampling

A sampling method where researchers ensure specific characteristics of the sample by setting quotas for subgroups, allowing for varied representation while still influencing selection.