# Maths Summarising Data

Mind Map by Will Thorpe, updated 12 months ago
 Created by Will Thorpe about 4 years ago
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### Description

Higher Maths Mind Map on Maths Summarising Data, created by Will Thorpe on 01/17/2016.

## Resource summary

Maths Summarising Data
1 Mode
1.1 Most common value
1.1.1 With continuous data in a frequency table we can pick a modal class
2 Median
2.1 Middle Value when all the data is arranged in ascending order
3 Mean
3.1 Average value of a set of numbers
3.1.1 Mean of a frequency table is x times by frequency for all values of x and added. Then divide by frequency
3.1.2 Sum of all values divided by number of values
4 Range
4.1 Largest value - smallest value
5 Interquartile Range
5.1 Upper quartile- lower quartile (Upper is 75%, Lower is 25%)
6 Standard Deviation
6.1 Square root of the variance
7 Variance
7.1.1 Sum of all the squares of the data/ number of values

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