Machine Learning: Random Forest with Python from Scratch - Lists

The video tutorial covers the implementation of the len function for tuples, explaining how it works for both tuples and strings. It then introduces lists, highlighting their mutability compared to tuples. The tutorial demonstrates various list operations, including updating elements, replacing numbers with strings, and appending new elements. It also explores nested lists and indexing techniques, concluding with a task for students to delete an element from a list.

What does the __len__ function return when applied to a tuple?

• The first element

• The type of elements

• The number of elements

• The sum of all elements

How do lists differ from tuples in Python?

• Lists are immutable, tuples are mutable

• Lists can be changed after creation, tuples cannot

• Lists store only numbers, tuples store any data type

• Lists are faster than tuples

What happens when you try to replace a character in a string element of a list?

• An error occurs because strings are immutable

• The list becomes immutable

• The character is replaced successfully

• The entire string is replaced

Which of the following is true about lists in Python?

• Lists cannot contain other lists

• Lists can only store integers

• Lists can be updated after creation

• Lists are immutable

What is the result of using negative indexing on a list?

• It returns an error

• It returns the last element

• It returns the middle element

• It returns the first element

How can you add a new element to an existing list?

• Using the add() method

• Using the extend() method

• Using the append() method

• Using the insert() method

What task were students given at the end of the lesson?

• To create a new list

• To replace a string in a list

• To delete an element from a list

• To append a number to a list