Financial Risk Manager Part 1
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In terms of the reasons for data cleaning, Which of the following is false?
A
Observations on a feature that are several standard deviations from the mean should be checked carefully, as they can have a big effect on results.
B
We can use the mean rather than median of the observations to replace missing observations.
C
Observations not relevant to the task at hand should be removed.
D
For data to be read correctly, it is important that all data is recorded in the same way.