IB Maths AA SL 4.1 Sampling & data
IB Maths AA SL 4.1 Sampling & data
Practise choosing and describing sampling methods, spotting bias, and counting simple random processes from contextual survey information.
How this is tested
- distinguish convenience, quota and systematic samples from first-arrival or every-20th descriptions
- explain sampling bias by linking the chosen group to people excluded from it
- calculate sample intervals or simple counts, such as 5% of an audience or 6 x 6 x 6 generated outcomes