Sampling Methods Flashcards

GCSE Mathematics (Edexcel) 1MA1

Population

The entire group of items or people that you want to study.

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Terms in this set (10)

1

Population

The entire group of items or people that you want to study.

2

Sample

A smaller group selected from the population to represent it.

3

Random Sampling

A sampling method where every member of the population has an equal chance of being selected.

4

Systematic Sampling

A sampling method where you select items at regular intervals from an ordered list.

5

Stratified Sampling

A sampling method where the population is divided into groups (strata) and a proportional sample is taken from each group.

6

Bias in Sampling

Occurs when the sample does not fairly represent the population, leading to inaccurate results.

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Advantages of Random Sampling

It is unbiased and gives every member of the population an equal chance of being selected.

8

Disadvantages of Random Sampling

It can be time-consuming and may require a complete list of the population.

9

Advantages of Stratified Sampling

It ensures all groups in the population are represented proportionally.

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Disadvantages of Stratified Sampling

It can be complex and time-consuming to divide the population into strata.

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