Data Science glossary · taught inside Certificate in Data Science

What is Exploratory Data Analysis?

An approach to analysing datasets to summarise their main characteristics, often employing visual methods. This process helps identify patterns, spot anomalies, test hypotheses, and check assumptions with the aid of summary statistics and graphical representations.

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The definition

Exploratory Data Analysis,
explained properly.

Not a flashcard answer — the working meaning, where you'll meet it, and why professionals who use it precisely get taken more seriously.

An approach to analysing datasets to summarise their main characteristics, often employing visual methods. This process helps identify patterns, spot anomalies, test hypotheses, and check assumptions with the aid of summary statistics and graphical representations.

Understanding Exploratory Data Analysis on paper is one thing — using it confidently at work is another. In professional settings, this is the kind of term that separates people who talk about Data Science from people who are trusted to make decisions in it. Recruiters and managers listen for it in interviews, and colleagues notice immediately whether you use it precisely or vaguely.

At OnlineUni, Exploratory Data Analysis is taught inside the module “Foundations of Data Analysis” of Certificate in Data Science, where it is placed in its full working context — applied to real Data Science scenarios, not memorised in isolation.

Employer demand for Data Science skills — indexed growth since 2019
Indicative index of skill mentions in professional job postings (2019 = 1)
20191x20201.3x20211.9x20222.7x20234x20245.7x20258.1x202611x
Your move

What mastering it
is worth.

Learning terms one definition at a time builds vocabulary. Completing the programme builds what employers pay for: certified capability.

Certified professionals are promoted faster, shortlisted more often and paid a documented premium over equally experienced but uncertified colleagues — and the premium compounds with seniority, so the earlier you certify, the longer it pays.

Fluency, not flashcards

Exploratory Data Analysis and every related concept taught in working context, so you can use them under pressure.

A verifiable credential

A shareable digital certificate in Data Science for LinkedIn and your CV the day you pass.

Salary leverage

Certified Data Science capability is exactly what the uplift figures here are paid for.

Momentum

Self-paced, online, from £79 — most learners finish their first certificate within two months.

Typical salary uplift after completing a professional certificate
Indicative ranges from published continuing-education salary studies, by career stage
Entry level+18%Mid-career+26%Senior+31%Leadership+38%
The programme where Exploratory Data Analysis lives

Certificate in Data Science

A self-paced online Certificate programme with 3 modules, an online assessment and a verifiable digital certificate you can share on LinkedIn the day you pass.

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£199 £79
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Keep reading

More terms from
this glossary.

Every term below is taught inside the same programme — read them all free, then study them properly.

Stop looking terms up. Start being the one who explains them.

Certificate in Data Science covers Exploratory Data Analysis and everything around it — from £79, entirely online.

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