Data Analysis is an art of collecting and analyzing data so that the company can use the same to perfect their marketing, insurance, political and other business practices. These data analysts are highly trained professional and they perform the analysis by using various mathematical calculations and further determine how the data samples might best be applied to increase the profit of the business. One of the critical roles is an evaluation of risk.
As most companies are always looking to expand their businesses, or at least improve their business practices, data analysis is an essential and profitable field. Data Analyst seeks to understand the origin of data and any possible distortions through the use of technology. If one can identify trends and patterns of information and also has an excellent computer skill, then they can find their niche as a Data Analyst.
In this role, a person is asked to use their technical expertise to extrapolate data by using advanced computerized models. The job is professional and heavily influenced by mathematics and advanced algorithms. One can be at a Data cleaner, rooting out errors in data or can be employed on Initial Analysis, whereby the assessment of the quality of data is done. As the Main Data Analyst, one is asked to look at the meaning of data, and if they work on Final Analysis.
Here are a few data analyst interview questions that might be asked by the panel:
Some of the best practices for data cleansing includes:
Data Screening: In this step various algorithms are used to screen the entire data to find any erroneous or questionable values.
Data Verification: In this step each suspect value is evaluated on a case by case basis, and a decision is made if the values have to be accepted as valid, rejected as invalid or if they have to be replaced with some redundant values.
Never Miss an Articles from us.