Sorting and counting
Sort things into groups and count them to answer a question.
- Sorting into groups
- Yes or no
- Tally marks
- Picture charts
- Ask, count and tell
5 chapters planned
Data and chance
Every book on this topic, lowest level first. Each one builds on the book above it. If a book feels hard, go back up the ladder to the one before.
NextYou are here Tables and charts
Collect facts, put them in tables and charts, and say what they show.
- Tally and frequency tables
- Pictograms with a key
- Bar charts
- Tables with rows and columns
- Sorting diagrams
- Line graphs
- Your own survey
7 chapters
NextYou are here Statistics and chance
Collect and show data, find averages, and measure how likely things are.
- Collecting data
- Bar charts and pie charts
- Mean, median and mode
- Comparing two groups
- Line graphs and honest charts
- The language of chance
- Working out chances
- Experiments and fair games
8 chapters
NextYou are here Probability
Work out the chances of one or more events, and use tables, trees and diagrams to keep track.
- Listing all the outcomes
- Relative frequency and expected results
- The OR rule and the AND rule
- Tree diagrams
- Picking without putting back
- Venn diagrams and sets
- Conditional probability
- Counting choices
8 chapters
NextYou are here Statistics
Take fair samples, sum up data with numbers and charts, and compare groups.
- Samples and bias
- Averages from frequency tables
- Cumulative frequency
- Box plots
- Histograms with unequal widths
- Scatter graphs and correlation
- Data over time
- Telling the truth with data
8 chapters
Probability distributions and inference
Model random events with distributions, and test claims using samples.
- Random variables
- Variance and standard deviation
- The binomial distribution
- The normal distribution
- Samples and the sample mean
- Testing a claim
- Testing a mean
- Correlation and regression
8 chapters planned