Appending Series with nonunique Indices

The Series bronze and silver, which have been printed in the IPython Shell, represent the 5 countries that won the most bronze and silver Olympic medals respectively between 1896 & 2008. The Indexes of both Series are called Country and the values are the corresponding number of medals won.

If you were to run the command combined = bronze.append(silver), how many rows would combined have? And how many rows would combined.loc['United States'] return? Find out for yourself by running these commands in the IPython Shell.

Possible Answers

combined has 5 rows and combined.loc['United States'] is empty (0 rows).
combined has 10 rows and combined.loc['United States'] has 2 rows.
combined has 6 rows and combined.loc['United States'] has 1 row.
combined has 5 rows and combined.loc['United States'] has 2 rows.

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Exercise

Appending Series with nonunique Indices

Instructions

Possible Answers