Which statement about tuples in Python is true?

Tuples in Python are indeed capable of holding mixed data types, which means they can contain elements of different data types within a single tuple. For example, a tuple can encapsulate a combination of integers, strings, floats, and even other tuples or lists. This flexibility is one of the defining characteristics of tuples, making them highly versatile for various programming tasks where such combinations are needed.

In addition to this, tuples are immutable, meaning once they are created, their elements cannot be altered, which contrasts with lists. Tuples are also defined using parentheses rather than curly braces, which are used for sets and dictionaries in Python. Moreover, while tuples can have duplicate values, their immutability means that, once created, their contents cannot be changed, including the introduction of new values or the removal of existing ones.

The correct understanding of tuples reinforces their utility in Python, particularly in situations where a data structure needs to maintain integrity without the risk of unwanted modifications.