These COMM121 notes are primarily based on the tutorials and lectures. They cover the following main chapters:
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Introduction and data
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Organising and visualising data
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Numerical descriptive measures
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Basic probability
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Some important discrete probability distributions
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The numerical distribution and other continuous distributions
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Sampling distributions
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Confidence interval estimation
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Fundamentals of hypothesis testing: one-sample tests
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Hypothesis testing: two-sample tests
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Analysis of variance
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Simple linear regression
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Introduction to multiple regression
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Time-series forecasting and index number
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