cleaning, transforming, and modeling data to discover useful information for decision-making.
A simple example of Data analysis is that whenever we take any decision in our day-to-day life, we can think about what happened last time or what will happen by choosing that particular decision. This is nothing but analyzing our past or future and making decisions based on it. For that, we gather memories of our past or dreams of our future. So that is nothing but data analysis. Now the same thing an analyst does for business purposes is called Data Analysis.