Problems With Collected Data Flashcards
1
Q
Why might some data be outliers
A
Could be accurate but extreme values
Incorrectly recorded
2
Q
Things to look out for
A
Outliers
Missing data
Written in the wrong format or order
Different units or symbols used
3
Q
When there are problems with the Data what is it
A
It is raw data
4
Q
What does cleaning the data mean
A
Fixing problems - by removing/correcting inaccuracies and missing data, cleaning with genuine outliers, putting the data in the same format and removing units and symbols
5
Q
What might removing the outliers do
A
Lead to inaccurate results so should try and record it again but may be time consuming
