Data Preprocessing - Paatshala Quiz

The function to fill in NAN values with 100,if df is the dataframe object

• fillna(100)

• df.fillna(100)

• df.fillna(0)

• df.fill(100)

_______ can be used to detect missing values for a dataframe object df.

• df.null()

• df.isnull()

• df.isempty()

• df.nonnull()

_______ can be used to find the total number of NAN values in a dataframe df.

• df.isna().sum()

• df. isnull().sum()

• Both the mentioned

• None of the mentioned

For a data with Gaussian distribution, the NAN values can be filled with _______

• mean

• median

• mode

• All the mentioned

Which among the following can be used to fill the NAN values?

• measures of central tendancy

• foreward filling

• Backward filling

• All the mentioned

NAN values of a skewed data can be filled using _______

• mean

• median

• mode

• All the mentioned

An outlier is a _______

• An unusual observation

• A value which is much different from the other values

• Both the mentioned

• None of the mentioned

Outliers can be found out using

• IQR method

• z-score method

• Standard deviation method

• All the mentioned

IQR stands for _______

• Inter Quartile Range

• Intra Quartile Range

• Inter Quarter Range

• Intra Quarter Range

_______ are the encodings available in Python

• Label encoding

• One hot encoding

• Both the mentioned

• None of the mentioned