### round()

* Round function in python rounds off the decimal value of a number to its nearest integer. For example: round(65.66) = 66.
* In addition, one can give an input of the specified number of decimals to which the number should be rounded. For example, round(65.66, 1) = 65.7.
* Its syntax is: `round(number, ndigits)`
  - **number** - the number to be rounded.
  - **ndigits** - number of decimal places up to which the given number is rounded; defaults to 0.










![round()](https://dphi-courses.s3.ap-south-1.amazonaws.com/introduction-to-python-basics-for-data-science/round\(\).png)





### sum()

You can perform the addition of a collection of numbers using the sum() function in Python.


![sum function](https://dphi-courses.s3.ap-south-1.amazonaws.com/introduction-to-python-basics-for-data-science/sum.png)