Data cleaning
6 practice questionsData ScienceStep-by-step solutions
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1
Which of the following is a typical data-cleaning task?
A.Increasing model depth
B.Removing duplicate records and fixing inconsistent formats
C.Adding more hidden layers
D.Reducing the learning rate
2
Converting a categorical variable into several binary () columns is called:
A.One-hot encoding
B.Standardization
C.Clustering
D.Sampling
3
Converting a categorical variable like 'color' into columns is called:
A.One-hot encoding
B.Standardization
C.Binning
D.Imputation
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