Data Science and Machine Learning (Theory and Projects) A to Z - Python Useful function: Python Function- Round

This video tutorial introduces useful functions in Python, focusing on the round function. It explains how the round function works with one or two arguments, providing examples to illustrate rounding floating point numbers to the nearest integer or to a specified number of decimal places. The tutorial includes practical demonstrations using a Jupyter Notebook. The video concludes with a brief introduction to the dev mode function, which will be covered in more detail in the next video.

What is the primary purpose of built-in functions in Python?

• To make Python code unreadable

• To create new programming languages

• To perform specific tasks efficiently

• To replace all user-defined functions

What does the round function do when given a single floating point number?

• Converts it to a string

• Converts it to a boolean

• Rounds it to the nearest integer

• Leaves it unchanged

If you use the round function on 4.3, what will be the result?

• 4

• 5

• 4.5

• 3

How does the round function behave when given two arguments?

• It returns the sum of the arguments

• It rounds the number to the specified number of decimal places

• It converts the number to a string

• It multiplies the arguments

What will be the result of round(4.556789, 2)?

• 4.56

• 4.6

• 4.55

• 4.57

When rounding 4.556 to three decimal places, what is the result?

• 4.556

• 4.557

• 4.555

• 4.558

What does the dev mode function return?

• Only the quotient

• Neither quotient nor remainder

• Only the remainder

• Both quotient and remainder