Data Science Interview Questions and Answers for Freshers

List and tuple are both data structures in Python used to store collections of items.

• Lists are mutable, meaning their values can be changed after creation.

• Tuples are immutable, meaning their values cannot be changed after creation.

• Lists are defined using square brackets [], while tuples are defined using parentheses ().

• Lists are typically used for collections of similar items, while tuples are used for collections of different items.

• Example of a list: my_list = [1, 2, 3]

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Data structures are ways of organizing and storing data in a computer so that it can be accessed and used efficiently.

• Data structures can be linear or non-linear

• Examples of linear data structures include arrays, linked lists, and stacks

• Examples of non-linear data structures include trees and graphs

• Choosing the right data structure is important for optimizing performance