A Data Analyst's sole responsibility is to play around with large amounts of data and search for hidden insights. It is used by every industry, which is why data analysts are in high demand. With the insights gained, informed decisions can be made. What's the difference between a data lake and a data warehouse?ĭata analysis is basically a process of analyzing, modeling, and interpreting data to draw insights or conclusions.
Mention some of the statistical techniques that are used by Data analysts. What are the advantages of using version control? Write the difference between variance and covariance. What do you mean by the K-means algorithm? Name some popular tools used in big data. What do you mean by univariate, bivariate, and multivariate analysis?
What do you mean by clustering algorithms? Write different properties of clustering algorithms? What do you mean by Time Series Analysis? Where is it used? Write characteristics of a good data model. Data Analyst Interview Questions for Experienced.What do you mean by collisions in a hash table? Explain the ways to avoid it. Mention some of the python libraries used in data analysis. Write difference between data analysis and data mining. What are the ways to detect outliers? Explain different ways to deal with it. Which validation methods are employed by data analysts? Write the difference between data mining and data profiling.
What are the tools useful for data analysis? What are the different challenges one faces during data analysis? Write some key skills usually required for a data analyst. What are the responsibilities of a Data Analyst? Data Analyst Interview Questions for Freshers.
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