Data Analysis
Mode
Mode is the most frequently occurring number. A set of data can have more than one mode.
Mean

Median
Median is the centre number when the numbers are arranged from smallest to largest.
Range
Range = maximum
minimum

Quartiles & percentiles
0th percentile: minimum
25th percentile: lower quartile
50th percentile: median
75th percentile: upper quartile
100th percentile: maximum
25th percentile: lower quartile
50th percentile: median
75th percentile: upper quartile
100th percentile: maximum
Interquartile range
Interquartile range = upper quartile
lower quartile

Mean & standard deviation
Ungrouped



Grouped