Coaching Centre
Chapter 8: Probability and statistics Notes
Types of data and data displays, mean, median, mode and range, sampling, probability of single events, two-step experiments, Venn diagrams, two-way tables and experimental probability.
Sections
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8A Collecting and displaying data Mastered
Categorical and numerical data, census and sample, bias in sampling, and choosing displays such as column graphs, dot plots, stem-and-leaf plots and histograms.
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8B Mean, median, mode and range Mastered
Calculating the mean, median, mode and range, finding a missing value from the mean, the effect of outliers and choosing the best measure.
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8C Probability Mastered
Sample spaces, equally likely outcomes, probability as a fraction, decimal or percentage, complementary events and the probability scale.
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8D Two-step experiments Mastered
Listing outcomes of two-step experiments with arrays and tree diagrams, with and without replacement.
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8E Venn diagrams and two-way tables Mastered
Organising data in Venn diagrams and two-way tables, using "and", "or", "only" and "neither", and finding probabilities.
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8F Experimental probability Mastered
Relative frequency from experiments and surveys, expected number of outcomes, and comparing experimental and theoretical probability.