AQA GCSE Statistics 8382 · 3.2.2

B1b: grouping data into categories and class intervals

Code: 3.2.2
In: 3.2 Section B: collecting data
Course: GCSE Statistics 8382
Board: AQA

Codes and titles are read by a script from AQA's published specification and have not been checked by a person. What each point covers is in the specification itself: AQA’s specification.

Points in 3.2 Section B: collecting data

3.2.1 B1a: types of data
3.2.2 B1b: grouping data into categories and class intervals
3.2.3 B1c: explanatory and response variables
3.2.4 B2a: primary and secondary data
3.2.5 B2b: sources of data
3.2.6 B2c: reliability and validity of data
3.2.7 B2d: bias and minimising data distortion
3.2.8 B3a: population, sampling frame and sample
3.2.9 B3b: meanings of population in context
3.2.10 B3c: judgement and opportunity sampling
3.2.11 B3d: random, systematic and quota sampling
3.2.12 B3e: simple random samples and random selection
3.2.13 B3f: stratification before sampling
3.2.14 B4: planning data collection, questions and interviews
3.2.15 B5a: problems with collected data
3.2.16 B5b: cleaning data
3.2.17 B5c: extraneous variables and control groups