Learn about quantitative data in KS3 Maths. Understand how numbers and measurements are collected, recorded, and compared using precision and accuracy.
|
|
||||||||||||||||||||||||
|
|
||||||||||||||||||||||||
|
|
||||||||||||||||||||||||
|
|
||||||||||||||||||||||||
|
|
You can find more about this topic by visiting BBC Bitesize - Collecting and recording data
An apple only has half a pip if it's been cut in half
|
Height can be measured against a continuous scale
|
||||||||||||||||||||||||
Adults are 18 or over. Someone aged 25 or 40 wouldn't know which box to tick
|
As the heights are grouped into 10cm intervals we do not know any of the heights exactly and therefore can't find out the range, median or any individual hights
|
||||||||||||||||||||||||
< means that they are more than 130cm tall and ? means they are less than or equal to 140cm tall
|
The sign ? means 'less than or equal to'
|
||||||||||||||||||||||||
This is simple rounding down
|
45 is the lowest number that can be rounded up to 50
|
||||||||||||||||||||||||
(5 x 30) + (9 x 40) + (5 x 50) + (1 x 60)
|
820 / 20 = 41
|