Q1.The how = "inner" parameter to the merge method causes. (CHOOSE RIGHT ANSWER)

1. those records from the merged dataframes that have the same key fields are combined
2. leaves all records from the "left" dataframe and only those records from the "right" one that have the same key fields
3. leaves all records from the "right", dataframe and only those records from the "left", which have the same key fields
4. None of the above

Q2.What Pandas method allows you to split a numeric variable into segments (categories) of a user-defined arbitrary length? (CHOOSE RIGHT ANSWER)

1. cut ()
2. qcut ()
3. split ()
4. None of the above

Q3.Which method replaces empty values in a data frame? (CHOOSE RIGHT ANSWER)dropna ()

1. fillna ()
2. replace ()
3. None of the above