You should learn the programming language Python for Data Analysis and you also should also be familiar with R programming, SQL. Python is essential because of its libraries for data analysis, data modeling, etc. After that, learn SQL for storing and retrieving the data from relational data from the databases. SAS (Statistical Analysis Software) is also used by some for statistical computing and data modeling, mostly used in the banking sector.
I recommend these Data Analytics Courses by Intellpaat if you are interested in Data Analytics.
Also, watch this video on Data Analysis:
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