Sho't left to data science

Tag: probability

  • Central limit theorem – a worked example

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    shotlefttodatascience
    in

    Remember our formal definition: The CLT states that, provided enough samples are taken, the sample distribution of the sample mean will be normally distributed, regardless of the population distribution. In mathematical terms we say therefore that the sample mean is equal to the population mean: With enough samples this also happens – the sample standard deviation…

  • Bayes theorem – a worked example

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    shotlefttodatascience
    in

    So I found this quite a mind-bender, although I believe this is part and parcel of the typical high-school maths syllabus now! Here is my stab at understanding the theorem and how it relates to a real-life example… Problem wording: Jane witnessed a robbery in which a car was involved. It is known that 1…