Numerical and statistical skills 2 (Edexcel GCSE Geography A): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
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Practise the cards
12 cards from this deck
Mode
Mode
Value that appears most frequently in a data set
How to calculate mean
How to calculate mean
Add all values together & divide by number of values
Mean precision rule
Mean precision rule
Keep precise without rounding unless specifically asked
Median
Median
Middle value when numbers arranged in ascending order
Median with even number of values
Median with even number of values
Halfway between the two middle numbers
What range measures
What range measures
How spread out data is
Range formula
Range formula
Largest value - Smallest value
Modal class
Modal class
Group with highest frequency in grouped data
What quartiles divide data into
What quartiles divide data into
Four equal parts
Lower quartile
Lower quartile
Divides bottom half of data into two equal parts
Upper quartile
Upper quartile
Divides top half of data into two equal parts
Interquartile range advantage
Interquartile range advantage
Less affected by extreme values than range