Sampling pros and cons Flashcards Preview

AQA Core Maths > Sampling pros and cons > Flashcards

Flashcards in Sampling pros and cons Deck (5)
Loading flashcards...
1
Q

Simple random sample pros and cons?

A

Each member has fair representation

  • Outliers are included
  • Costly (travel)
2
Q

Cluster sample pros and cons?

A

Less costly

-Outliers included
Cluster may not be representative of total population

3
Q

Systematic sample pros and cons?

A

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
Q

Stratified sample pros and cons?

A

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

-expensive

5
Q

Quota sample pros and cons?

A

Number of people picked from strata is random

-Choosing number of members is not random (biased)