Preprocessing steps:

All work must be written in python, upload your python file.

$1)$ Import the related libraries

$2)$ Import the dataset

$3)$ Take care of the missing values by using mean

$4)$ Encode the Independent variables

$5)$ Encode the dependent variables

$6)$ Split the dataset into the training and test sets

$7)$ Split the data into train and test sets $(80/20$ ratio in order$)$

$8)$ Apply feature scaling

Country Age Salary Purchased

France $4472000$ No

Spain $2748000$ Yes

Germany $3054000$ No

Spain $3861000$ No

Germany $40$ Yes

France $3558000$ Yes

Spain $52000$ No

France $4879000$ Yes

Germany $5083000$ No

France $3767000$ Yes$\backslash$