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Statistics

Often the section students find most approachable, because much of it is reading and interpreting rather than calculating. The Higher additions — cumulative frequency, box plots and especially histograms with unequal class widths — are a step up and are frequently examined.

Share of the Foundation paper~8%
Share of the Higher paper~8%
Topics17 · 12 both tiers, 5 Higher only
Published0 of 17

Probability and Statistics share this weighting between them. Weightings are approximate and vary slightly by board. They describe the whole tier rather than any single paper.

01

Types of data

Discrete, continuous, qualitative and quantitative

Coming soonFound. & Higher
02

Sampling and bias

Why a sample might not represent the population

Coming soonFound. & Higher
03

Frequency tables

Tally charts and grouped data

Coming soonFound. & Higher
04

Bar charts and pictograms

Drawing and interpreting

Coming soonFound. & Higher
05

Pie charts

Drawing, measuring and interpreting

Coming soonFound. & Higher
06

Mean, median, mode and range

Choosing the right average

Coming soonFound. & Higher
07

Averages from frequency tables

Including estimated mean from grouped data

Coming soonFound. & Higher
08

Stem-and-leaf diagrams

Reading and constructing

Coming soonFound. & Higher
09

Scatter graphs and correlation

Line of best fit and describing correlation

Coming soonFound. & Higher
10

Interpolation and extrapolation

Predicting from a line of best fit

Coming soonFound. & Higher
11

Time series

Trends over time

Coming soonFound. & Higher
12

Comparing distributions

Using an average and a measure of spread

Coming soonFound. & Higher
13

Cumulative frequency

Drawing and reading the curve

Coming soonHigher only
14

Box plots and quartiles

Median, quartiles and comparison

Coming soonHigher only
15

Interquartile range

A measure of spread resistant to outliers

Coming soonHigher only
16

Histograms and frequency density

Unequal class widths

Coming soonHigher only
17

Capture–recapture

Estimating population size

Coming soonHigher only

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