Maths unit 3&4

They are data values thats stand out from the main body of data.

Range= largest value- smallest value

Numerical or Categorical

• Arise from measuring or counting some quantity; for example, height, number of people ect.
• It can be discrete; arise when you count.
• It can also be continuous; arise when you measure

Arise when classifying or naming some qauality or attribute; for example place of birth, hair colour.

Is a listing of the values a variable takes in a data set, along with how often each value occurs. It can be recorded as a count or per cent.