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4320446
Maths Summarising Data
Description
Higher Maths Mind Map on Maths Summarising Data, created by Will Thorpe on 17/01/2016.
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maths
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data
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Mind Map by
Will Thorpe
, updated more than 1 year ago
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Created by
Will Thorpe
over 8 years ago
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Resource summary
Maths Summarising Data
Mode
Most common value
With continuous data in a frequency table we can pick a modal class
Median
Middle Value when all the data is arranged in ascending order
Mean
Average value of a set of numbers
Mean of a frequency table is x times by frequency for all values of x and added. Then divide by frequency
Sum of all values divided by number of values
Range
Largest value - smallest value
Interquartile Range
Upper quartile- lower quartile (Upper is 75%, Lower is 25%)
Standard Deviation
Square root of the variance
Variance
Spread of the data
Sum of all the squares of the data/ number of values
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