What Does a Data Scientist Do

What a Data Scientist does drives most businesses and organizations’ innovative products and services. A data scientist is a professional who is responsible for extracting insights from data using advanced analytical and statistical techniques. Data scientists work with large datasets to identify patterns, trends, and insights that can inform business decisions, improve operations, or drive innovation. Here are some of the key tasks that data scientists typically perform:

  1. Data preparation: Data scientists spend a significant amount of time collecting, cleaning, and preparing data for analysis. This includes identifying missing or inconsistent data, dealing with outliers, and transforming data into a usable format.
  2. Exploratory data analysis: Data scientists use exploratory data analysis techniques to identify patterns, trends, and outliers in data. This involves using statistical methods and data visualization tools to explore the data and gain a deeper understanding of it.
  3. Statistical modeling: Data scientists use statistical modeling techniques such as regression analysis, time-series analysis, and clustering to identify relationships between variables and predict future outcomes. They may also use machine learning techniques such as decision trees, random forests, and neural networks to build predictive models.
  4. Data visualization: Data scientists use data visualization tools such as charts, graphs, and dashboards to communicate insights and trends in data to stakeholders. This helps stakeholders to understand complex data and make informed decisions.
  5. Business acumen: Data scientists need to have a deep understanding of the business context in which they are working. This includes understanding the industry, the market, the competition, and the goals and objectives of the organization.
  6. Communication: Data scientists need to be able to communicate complex data and insights to stakeholders who may not have a technical background. This involves translating technical jargon into plain language and presenting data in a clear and understandable way.
  7. Experimentation and testing: Data scientists design experiments and tests to validate hypotheses and test the effectiveness of solutions. They use A/B testing, multivariate testing, and other techniques to determine which solutions are most effective.

Considering Business Analysts; while both business analysts and data scientists work with data, they have different roles and responsibilities. Business analysts focus more on understanding business needs, identifying opportunities for improvement, and designing solutions to address those needs. Data scientists focus more on analyzing data to extract insights and build predictive models. Therefore, Business analysts deliver requirements documents, business cases, and project plans to stakeholders, while Data scientists deliver data analysis, visualizations, computing models and predictions to stakeholders.