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Course 24013

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Consider a nested list data = [[1,2],[3,4]]. What happens when you write data[1][1] = 10?

The entire inner list [3,4] is replaced by 10.

The element at row 1, column 1 becomes 10, modifying the original structure.

A TypeError occurs because nested lists are immutable.

The assignment creates a new copy of the list without modifying the original.

Which of the following statements about map() and filter() in Python is TRUE?

filter() always returns a list, even in Python 3.

map() can only be used with functions that return boolean values.

Both map() and filter() return iterators in Python 3, not lists.

map() cannot be used with lambda functions that have multiple arguments.

A lambda function is defined as f = lambda x, y: x if x > y else y. Which of the following best describes this lambda?

It returns the minimum of x and y.

It is invalid because lambda cannot contain conditional expressions.

It returns the sum of x and y.

It returns the maximum of x and y.

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