What are the main skills needed for a Data scientist?

what are the main skills needed for a Data scientist ?

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There is absolutely no need for you to be an expert in programming field. But you need to have basic understanding of programming and algorithms to become a data scientist. The most important ingredient for a data scientist is to have an expertise in there domain like biosciences, mathematics, physics or whatever they have studies. A data scientist needs to be aware of the right questions to be asked and how and where it can be found out. Therefore if you are looking for being a data scientist for an Biosciences company make sure you know in and out of the domain. If it is an investment firm, see to it that you have good understanding of financial market and economics so that you can derive meaning out of data.
These are my understanding of a data scientists role.