9. Statistics
- Syllabus
- 0580–2028–2029
- Section
- 9
- Level
- Core
Exam analysis
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In this section
Topic C9.1
C9.1 Classifying statistical data
Objectives in this topic
C9.1.1 Classify and tabulate statistical data
- Classify and tabulate statistical data. e.g. tally tables, two-way tables.
Topic C9.2
C9.2 Interpreting statistical data
Objectives in this topic
C9.2.1 Read, interpret and draw inferences from tables and statistical
- Read, interpret and draw inferences from tables and statistical diagrams.
C9.2.2 Compare sets of data using tables, graphs and statistical measures.
- Compare sets of data using tables, graphs and statistical measures.
C9.2.3 Appreciate restrictions on drawing conclusions from given data
- Appreciate restrictions on drawing conclusions from given data. e.g. compare averages and ranges between two data sets.
Topic C9.3
C9.3 Averages and range
Objectives in this topic
C9.3.1 Calculate the mean, median, mode and range for individual data and
- Calculate the mean, median, mode and range for individual data and distinguish between the purposes for which these are used. Data may be in a list or frequency table, but will not be grouped.
Topic C9.4
C9.4 Statistical charts and diagrams
Objectives in this topic
C9.4.1 Draw and interpret: (a) bar charts (b) pie charts (c) pictograms (d)
- Draw and interpret: (a) bar charts (b) pie charts (c) pictograms (d) stem-and-leaf diagrams (e) simple frequency distributions. Includes composite (stacked) and dual (side-by- side) bar charts. Stem-and-leaf diagrams should have ordered data with a key.
Topic C9.5
C9.5 Scatter diagrams
Objectives in this topic
C9.5.1 Draw and interpret scatter diagrams.
- Draw and interpret scatter diagrams.
C9.5.2 Understand what is meant by positive, negative and zero correlation.
- Understand what is meant by positive, negative and zero correlation.
C9.5.3 Draw by eye, interpret and use a straight line of best fit
- Draw by eye, interpret and use a straight line of best fit. Plotted points should be clearly marked, for example as small crosses (×). A line of best fit: • should be a single ruled line drawn by inspection • should extend across the full data set • does not need to coincide exactly with any of the points but there should be a roughly even distribution of points either side of the line over its entire length.