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Every day, about 2.5 quintillion bytes of data are produced. Every text you send, webpage you load, online form you complete, and other actions generate more data. Data analysis abilities are necessary for firms that want to turn raw data into information that can be used. A data analyst is a specialist who gathers, purifies, and turns raw data into actionable insights. Their ultimate objective is to use data to address issues or find solutions. Data analysts use their data analytics talents to benefit companies and governmental organizations across all industries. A data analyst's job is crucial since what they do affects how a firm operates.


The most important ability you must develop is the ability to respond to questions, especially those that are poorly phrased, with data (i.e. facts). You will be asked questions as a data analyst to provide answers that will assist a firm in making decisions. Sometimes the issue is straightforward and the data is readily available, in which case it is relatively simple. However, frequently the topic is difficult or abstract, and the data you have access to is not exactly what you require. As a data analyst, you must be an excellent problem solver since you will frequently be requested to complete tasks that no one else in the organization can complete.

To start learning: Elementary math skills and numbers-driven curiosity.

Thinking logically goes beyond arithmetic and statistics. You don't have to read up on the most recent developments in philosophy, but you do need to be able to connect disparate bits of data and information in ways that go beyond the obvious. The chance to determine "why did this happen?" is one of the most fascinating aspects of the data analyst's job.

You must hone critical thinking in tandem with rational thinking. Consider the following advice as a very healthy dose of skepticism: if an offer seems too good to be true, it probably is. Double-check, validate, seek peer reviews, and, most importantly, identify your biases and learn how to leverage them. You have to be interested. If not, work on increasing your curiosity and desire to stay current. Then, discover your passion inside it. If you don't like it, learning the intricacies of the pivot table or learning to code in SAS can be very boring. According to my personal life philosophy, if you are passionate about anything, you will have the strength and endurance to persevere. If you don't love it, shake hands and say goodbye before the connection turns toxic.

To get hired: Excel skills at the minimum, SQL, Python, and BI (Tableau, QlikView, Power BI) preferred. Most companies will favor candidates with a quantitative degree like Economics, Computer Science, or Math.

Technically, I would advise using the next route:

  • Master Excel. Formulas come first, then PivotTables, sophisticated dynamic charting, and VBA (or JS, depending on the version you have). Excel dashboard and report creation skills are essential because not everyone wants to be burdened with other tasks.

  • Discover PowerPoint. You must produce great reports and present gripping tales. It is crucial that you don't get stuck trying to figure out how to add a certain type of chart or how to format something in PPT. Keynote is frequently recommended as a decent alternative, however in my personal experience, PowerPoint is for reporting and Keynote is for selling.

  • Learn Python, R, and SAS at the most fundamental level. You can download and test out the free versions of all of them. Additionally, keep in mind that data analysis, as well as data science, is about the concept rather than the instrument. Since you won't always have access to everything, you should learn how to pull a contingency table in each language.

  • Learn SQL at the highest level possible. Data Manipulation Language must be your new natural tongue; I'm not talking about DBA level SQL. You also need to understand how and when perspectives make sense. Seriously, you need to have the SQL abilities necessary to extract the data from the database and write anything on a deck, disregarding R, SAS, Python, SPSS, Matlab, and everything else. You simply must possess them.

No one will be expecting you to be an expert in every tool, but you should be a bit of a generalist who can extract data from many systems and then use Excel—primarily Excel, but occasionally SQL—to alter and change the data to answer the business issue. However, in general, you'll be proficient with the tools your organization utilizes;

So, to summarize;

1. Grasping the question clearly is a must

2. Be an excellent problem solver so you can respond to the query.

3. Possess the expertise necessary to use the numerous tools your organization uses to extract, convert, and analyze data.

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