IN Python , choose the correct answer :

Q19 : The command dataframe_name.describe with default parameters displays descriptive statistics only for data of type

1- Numeric

2- Categorical

3- Both of the above are correct

4- None of the above

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Q20 :Which method removes empty values in a data frame?

1- dropna ()

2- fillna ()

3- replace ()

4- None of the above

_____________

Q21 :Which method replaces empty values in a data frame?

1- dropna ()

2- fillna ()

3- replace ()

4- None of the above