Coaching Centre
Chapter 9: Probability and statistics Notes
Venn diagrams, two-way tables and set notation, two-step experiments with arrays and tree diagrams, measures of centre from frequency tables and grouped data, and measures of spread with quartiles, interquartile range and box plots.
Sections
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9A Venn diagrams, two-way tables and set notation Mastered
Using set notation (union, intersection, complement, n(A)), Venn diagrams and two-way tables to count outcomes and find probabilities.
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9B Arrays and tree diagrams Mastered
Two-step and three-step experiments using arrays (tables) and tree diagrams, with and without replacement, and relative frequency.
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9C Measures of centre and grouped data Mastered
Mean, median and mode from lists, stem-and-leaf plots and frequency tables, grouping data into class intervals, histograms and estimating the mean from class centres.
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9D Quartiles, IQR and box plots Mastered
Range, quartiles and interquartile range, the five-number summary, outliers, drawing and reading box plots, and comparing data sets.