Place: processes and relationships
Knowledge Booster

Geographical Skills at Key Stage 4 – Statistical Skills.

Use appropriate measures of central tendency, spread and cumulative frequency (median, mean, range, quartiles and interquartile range, mode and modal class).

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Calculate percentage increase or decrease and understand the use of percentiles.

Describe relationships in bivariate data: sketch trend lines through scatter plots; draw estimated lines of best fit; make predictions; interpolate and extrapolate trends.

Be able to identify weaknesses in selective statistical presentation of data.