Data & Analytics
Data Scientist
Frames open-ended business problems as statistical questions, builds models that answer them, and defends the methodology to skeptical stakeholders.
Frames open-ended business problems as statistical questions, builds models that answer them, and defends the methodology to skeptical stakeholders.
US$134,855 median salary in United States¹
- AnalysisIntermediateNew
Optimizing Ad Spend for a D2C Cosmetics Brand
You are a data analyst at Glow & Grow. Using the provided dataset (simulated), perform an exploratory data analysis to understand trends in ad performance. Build a regression mo…
- Data Analysis
- Regression
- Data Visualization
Data Analytics for Business - AnalysisAdvancedNew
Forecasting Churn for a SaaS Scale-Up
You are a data scientist intern at TaskFlow. Using the provided dataset, perform feature engineering and build a logistic regression or decision tree model to predict churn. Ide…
- Data Analysis
- Regression
- Classification
Data Analytics for Business - AnalysisIntermediateNew
Churn Prediction for a Stockholm D2C Cosmetics Brand
You are a data science consultant hired by NordicGlow. Using the provided dataset (synthetic but realistic), you must preprocess the data, engineer features from transaction, cl…
- Data Preprocessing
- Feature Engineering
- Classification
Data Science for Business - AnalysisIntermediateNew
Customer Lifetime Value Model for SaaS Scale-up
You are provided with a dataset of 5,000 customers with features: acquisition channel, monthly spend, tenure, number of support tickets, product usage metrics, and churn flag. Y…
- Customer Lifetime Value
- Predictive Modeling
- Customer Segmentation
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¹ Median annual salary computed from the salary histogram of 50 current Adzuna job postings for "Data Scientist" in United States, fetched May 2026. Skills come from the disciplines tagged on live Ewance challenges for this role.
Portrait: Photo by Rahadiansyah on Unsplash.