Improve a questionnaire

Nov 2017 P2 Q3a

Criticise survey questionnaire

Nov 2016 P1 Q3

Questionnaire - interpret & improve

Summer 2019 P2 Q5a

Suggest groups for questionnaire ans

Nov 2019 P1 Q7

valid sampling & questions

Nov 2018 P1 Q8

Interpret questionnaire results

Nov 2017 P1 Q8a

stratified sampling

Nov 2020 P1 Q10

systematic sampling at concert

Nov 2018 P1 Q12a

How to do a systematic sample

June 2017 P2 Q15a