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

Range?
Range= largest value smallest value

Types of data
Numerical or Categorical

Numerical data
 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

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

Frequency table
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.

