Quintiles are simply four numbers that break up numerical data sets into five equal parts. For example, if you took the number set of 1,2,3 and 4, the quintiles would be 1.6, 2.2, 2.8 and 3.4, as the ...
A GCSE Maths video about how to calculate upper and lower bounds. For any measurement, there’s an upper and lower bound to what the actual non-rounded measurement could be.