Y1 Stats, Chapter 2:

Measures of location & spread

Y1 Stats Chp2 KO.pdf

Knowledge organiser

Edexcel AS level - S1 Ch2 - Location & Spread.pdf

Textbook chapter

Y1 Stats Chp2 Solutions.pdf

PMT solutions

Y1 Stats 2.1

Measures of central tendency

Intro and variables in stats

2A Mean from ungrouped data

2B Mean from grouped data

Y1 Stats 2.2

Other measures of location (linear interpolation)

e.g. quartiles

Ungrouped: quartiles

+ L3-05, L3-06

Quartiles and percentiles

Y1 Stats 2.3

Measures of spread

e.g. interpercentile range (percentiles & deciles)

Interquartile range (IQR)

Comparing data sets 1/2

Comparing data sets 2/2

Y1 Stats 2.4

Variance and standard deviation

Intro: variance and S.D.

+ LS-13, LS-16

More visual

Y1 Stats 2.5

Coding

Intro: linear coding

Example of linear coding

Coding for mean and standard deviation

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