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AQA Core Maths > Sampling pros and cons > Flashcards

Flashcards in Sampling pros and cons Deck (5)
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1

Simple random sample pros and cons?

Each member has fair representation

-Outliers are included
-Costly (travel)

2

Cluster sample pros and cons?

Less costly

-Outliers included
Cluster may not be representative of total population

3

Systematic sample pros and cons?

Tends to be unbiased
Can be done autonomously

-nth item may coincide with faulty pattern
-decimals are rounded, so sample is not fully accurate

4

Stratified sample pros and cons?

Size of each sample is in proportion to size of each strata within population

-expensive

5

Quota sample pros and cons?

Number of people picked from strata is random

-Choosing number of members is not random (biased)