Geographical Skills (OCR GCSE Geography B (Geography for Enquiring Minds)): Flashcards
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Practise the cards
10 cards from this deck
Central tendency
Central tendency
Statistical measures identifying typical/central value in dataset
Median
Median
Middle value when numbers arranged in order
Mean formula
Mean formula
Sum of all values ÷ total number of values
Mode
Mode
Value that appears most frequently in a dataset
Range formula
Range formula
Maximum value - minimum value
IQR (interquartile range) formula
IQR (interquartile range) formula
Upper quartile (Q3) - lower quartile (Q1)
Percentage increase formula
Percentage increase formula
(Increase ÷ original value) × 100
Correlation describes
Correlation describes
Strength & direction of relationship between two variables
Interpolation
Interpolation
Finding value within data range using line of best fit
Extrapolation reliability
Extrapolation reliability
Uncertain - extends line beyond known data range