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Data Analyst - Interview Questions
What are the different challenges one faces during data analysis?
While analyzing data, a Data Analyst can encounter the following issues :  

* Duplicate entries and spelling errors. Data quality can be hampered and reduced by these errors. 
 
* The representation of data obtained from multiple sources may differ. It may cause a delay in the analysis process if the collected data are combined after being cleaned and organized.  

* Another major challenge in data analysis is incomplete data. This would invariably lead to errors or faulty results.   

* You would have to spend a lot of time cleaning the data if you are extracting data from a poor source.   

* Business stakeholders' unrealistic timelines and expectations   

* Data blending/ integration from multiple sources is a challenge, particularly if there are no consistent parameters and conventions   

* Insufficient data architecture and tools to achieve the analytics goals on time.
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