Paper 2 · Statistics
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Lesson 3 of 21
Statistics 3 – Mean, Mode, Median, Range, Interquartile range, Standard Deviation, Percentiles
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- Calculate the mean, mode, median, range and inter-quartile range of a data set
- Find σ with the page-33 formula σ = √(Σ(x−μ)²/n) and on your calculator (σx, not sx)
- Find percentiles and read quartiles as the 25th, 50th and 75th percentiles
- Use population vs sample notation correctly: μ and σ vs x̄ and s
Most recent exam questions
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