03. Central Tendency and Variation

From the DfE Mathematics AS and A-Level Content (LINK):

Discrete Data: Mean, Mode, Median & Quartiles

L3-01 [Data: Finding the Mean from Discrete Data]


L3-02 [Data: Finding the Mode from Discrete Data]


L3-03 [Data: Finding the Median and Quartiles from Discrete Data]


Grouped Continuous Data: Mean, Mode, Median & Quartiles


L3-04 [Data: Estimating the Mean from Grouped Continuous Data]


L3-05 [Data: Finding the Modal Class from Grouped Continuous Data]


L3-06 [Data: Estimating the Median from Grouped Continuous Data]


L3-07 [Data: Estimating the Quartiles from Grouped Continuous Data]


The Interquartile Range


L3-08 [Data: The Interquartile Range]


The Midrange (OCR MEI only)

L3-09 [Data: OCR MEI ONLY The Midrange]

Comparing Data Sets

L3-10 [Data: Comparing Data Sets Problem 1]


L3-11 [Data: Comparing Data Sets Problem 2]


Variance and Standard Deviation


L3-12 [Data: Introducing the Variance and Standard Deviation]


L3-13 [Data: Comparing Data Sets Problem 2 AGAIN!]


L3-14 [Data: The Sample Standard Deviation]


L3-15 [Data: OCR MEI and the Standard Deviation]


L3-16 [Data: EXTENSION Alternative Formulae for the Standard Deviation]


L3-17 [Data: The Standard Deviation from Summary Statistics]


Linear Coding


L3-18 [Data: Introducing Linear Coding]


L3-19 [Data: Example of Linear Coding]


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