WHAT IS DATA SCIENCE?

You might be ambigious to know what is data science ?

In the beginning of the 21st century various application werewhich made the world connect globally.So the inflation of the people on digital pplatform increasedglobally and there was increase in large amount of data.It became necessary to manage this data and "DATA SCIENCE"came into existence.

"Data science means almost everything that has something to do with data collecting,analyzing and modelling.Yet the most importatnt thing is its application."

So consider the example you need to make a machine learning model for estimation of house prices.

How would you proceed to make this model?
* First step for proceeding would be collection of data such as price,area,loaction,etc.which is also called as features for estimation of house prices.
*Next step leads to DATA CLEANING of the Data which we have collected for model estimation.Sometimes unneccessary data is collected which increases the complexity of the problem.So it becomes mandatory to clean this data.
*Further step consists of DATA EXPLORATION AND ANALYSIS which makes understand pattern in our data.By recognizing the pattern we can eliminate the data whichh causes problem in model.
*This is followed by DATA MODELLING which builds the machine learning model on the basis of the data exploration and the analysis which we did before.*Next is DATA VALIDATION stage.During this stage the model which we have build is tested on the new data which our model doesn't know and checks any false prediction.If any false prediction is tested than that issue is fixed. 

All this things contribute toward data science  and is the basic knowledge to know and proceed towards Data Science.