KarinaDataScientist's Substack
KarinaDataScientistMy personal Substack
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 12 | Founded | 6 months ago | Last Issue | 5 days ago |
| Active | |||||
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karinadatascientist.substack.comLatest Issues
The Data Analyst Roadmap I Would Follow If I Started Today
Every week someone asks me some version of this question: “Where do I start?”
There are a thousand roadmaps online. Most of them are lists of tools and courses that will keep you busy for two years without ever getting you a job.
KarinaDa...
Python for Beginners — Let's Start From Scratch
Today we are talking about Python. Why it matters for data people and the basic concepts you need to understand before anything else makes sense.
Thanks for reading KarinaDataScientist's Substack! Subscribe for free to receive new posts an...
Let's Build a Fraud Detection Model Together
We have done EDA, A/B testing, customer segmentation. Today we are going further.
Today’s project: fraud detection using machine learning. Can we predict which e-commerce transactions are fraudulent?
Thanks for reading KarinaDataScientist...
Let’s Work on a Data Analytics Project Together — A/B Test
April 24, 2026 | Read online
Last time we did exploratory data analysis. Today something different: A/B test analysis. This is one of the most common analyses you will do as a data analyst, and one of the most requested in interviews.
Tha...
The Data Analyst Interview — The Case Study Round
Last year I was interviewing for an Analytics Manager role in telecom. I passed the HR screen, behavioural test, the hiring manager call, meeting with my future manager and colleagues. Then they sent me an email.
“We’d like you to complete...
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| Subscribers | Engagement | 71 | Monthly Web Visits | ||
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| Accepts Sponsors | Estimated Cost per Ad | ||||
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Data Science & Analytics I like sharing tips, tricks and stories
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