Data & Analytics
Data Analyst
Most business decisions start with someone asking a vague question, and a data analyst is the person who turns that question into something a database can answer. The role sits between curiosity and rigor, pulling clean numbers from messy systems and presenting them so a manager can actually decide.
Days move between SQL queries, dashboards, and conversations with stakeholders who don't yet know what they need. Strong analysts care about whether the answer is right, not just whether it looks right, which means understanding hypothesis testing and the difference between correlation and cause.
Students who enjoy detective work and clear writing grow into this naturally. Tools like Power BI or Tableau become extensions of how you think.
US$108,980 median salary in United States¹
- AnalysisFoundationalNew
Optimize Pricing for a Sydney D2C Cosmetics Brand
You are a junior data analyst at GlowSydney. Using the provided dataset of 500 transactions (including price, units sold, customer age, and gender), perform descriptive statisti…
- Descriptive Statistics
- Linear Regression
- Data Visualization
Statistics for Business - AnalysisFoundationalNew
Pricing Optimization for Seoul D2C Cosmetics
You are given a CSV with daily sales, price, ad spend, and competitor price for 3 products. Your task is to clean the data, run multiple linear regression to estimate demand ela…
- Linear Regression
- Hypothesis Testing
- Data Cleaning
Econometrics - AnalysisFoundationalNew
Sentiment Analysis for Tel Aviv D2C Cosmetics Brand
You are provided with a dataset of 10,000 customer reviews (in English) with no labels. Your task is to preprocess the text, develop a sentiment classification model using NLP t…
- Text Preprocessing
- Sentiment Analysis
- Classification
Text Analytics and Natural Language Processing
How it works
From brief to credential, in six steps.
Step 01
Browse challenges aligned to your studies.
Step 02
Accept the one that fits your goals.
Step 03
Work through it with AI Copilot guidance.
Step 04
Submit for structured evaluation.
Step 05
Earn a verified credential.
Step 06
Add it to LinkedIn with one click.
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Industry teams behind a decade of practitioner briefs
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Sponsor a challenge and meet candidates through actual work.
Industry teams can shape briefs around the skills they hire for, then evaluate students on rubric-scored deliverables — not resumes.
¹ Median annual salary computed from the salary histogram of 50 current Adzuna job postings for "Data Analyst" in United States, fetched May 2026. Skills come from the disciplines tagged on live Ewance challenges for this role.
Portrait: Photo by Lanh Bondol on Unsplash.



















































































