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An average effect can hide very different responses.
Ozzy · Example explanation
At $115 of past spending, the illustrative effect is $17.62. That is an average for similar customers, not a guaranteed effect for one person.
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YOUR NEXT STEP STARTS HERE
From the foundations of statistics to the decisions behind a marketing campaign.
LECTURES
Read clearly. Explore interactively. Ask when it clicks—or when it doesn’t.
Understand what changes outcomes, not just what predicts them.
For students & data practitioners
English · Türkçe
Make sense of sampling, estimation and hypothesis testing.
For undergraduate & graduate students
English · Türkçe
Understand trends, dependence and the uncertainty in a forecast.
For students & analysts
English · Türkçe
Connect statistical thinking with practical learning in Python.
For students & aspiring practitioners
English · Türkçe
APPLICATIONS
Tools for marketing decisions, with guided data preparation and Ozzy support.
How do marketing channels relate to sales, and how could the budget be allocated?
Causal interpretation requires justified assumptions and validation.
View pricing →What did a campaign change, and how do estimated effects differ across customer groups?
Estimates depend on the study design, assumptions and data support.
View pricing →Who should receive the next campaign, given estimated uplift, costs and capacity?
A planning scenario is not proof that the predicted gain will occur.
View pricing →Try “statistics”, “causal” or “marketing”.
WHO WE ARE
Associate Professor of Statistics
OzzyLab brings together academic teaching and industry experience in statistics, machine learning and causal inference. Courses are created by Özgür Asar, formerly Co-founder and Head of R&D at Senzai and Staff Research Scientist at Afiniti.
He has taught data science courses at undergraduate and graduate levels at Sabancı University, as well as courses in Medical Informatics at Acıbadem University.
The goal is simple: help you understand the reasoning behind a method, when it works and what its results can tell you.
Get in touchA FEW THINGS TO KNOW
Current learning content is available in English and Turkish. Availability is shown with each course; additional languages are not promised at this stage.
Pick a course or application on the pricing page and choose Subscribe. Each product is a separate monthly subscription of $5 USD plus applicable taxes, with payments processed securely by Paddle. You can cancel at any time, and every new subscription comes with a 14-day money-back guarantee.
No. Courses and applications are separate products, each with its own $5 USD monthly subscription.
No. Ozzy can help explain and explore ideas, but AI answers can be wrong. Check calculations, assumptions and course materials, especially before making real-world decisions.