Answered: df['level'].sum() Select an answer: It…

df['level'].sum() Select an answer: It will produce an empty string. It will produce the number zero. It will produce the string "HML".

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter14: Files And Streams

Section: Chapter Questions

Problem 16RQ

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Concept explainers

Methods of StringBuilder class

The StringBuilder class can be used to create mutable strings. The methods defined in the StringBuilder class are widely used to manipulate and concatenate strings. It is a non-synchronized class which has public methods that can be accessed by multiple threads. It is not thread-safe.

Question

df['level'].sum()

Select an answer:

It will produce an empty string.
It will produce the number zero.
It will produce the string "HML".
It will cause an error.

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