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Eric Kleppen Eric Kleppen
Updated on June 18, 2025

How to Find Variance Using Python

Variance is a measurement of how far values in a data set differ from the mean. Here’s how to calculate variance by hand or in Python.

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Anthony Corbo Anthony Corbo
Updated on June 18, 2025

What Is Tableau?

Tableau is a business intelligence and data visualization tool used to simplify raw data, provide data insights and make it easily accessible at all levels of a company.

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Emmett Boudreau Emmett Boudreau
Updated on June 18, 2025

4 Ways to Solve FizzBuzz in Python

FizzBuzz is a challenge that involves writing code that labels numbers divisible by three as “Fizz,” five as “Buzz” and numbers divisible by both as “FizzBuzz.” Here’s how to solve it in Python.

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Adam Thomas Adam Thomas
Updated on June 18, 2025

Database Normalization vs. Denormalization

Normalization organizes data into separate tables to reduce redundancy and prevent anomalies, improving data integrity. Denormalization combines tables and adds redundancy to speed up queries and simplify data access, often at the cost of consistency.

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Chris Dowsett Chris Dowsett
Updated on June 18, 2025

Data Science vs. Decision Science: What’s the Difference?

Data scientists and decision scientists do very different, though equally important, work. Here’s how to tell the difference.

Max Reynolds Max Reynolds
Updated on June 18, 2025

Contrastive Learning: A Tutorial

Contrastive learning is a machine learning technique that trains models to distinguish between similar and dissimilar data pairs. It can be used for self-supervised learning and other use cases.

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Nicholas Rossman Nicholas Rossman
Updated on June 18, 2025

Is Your Phone So Smart That You Don’t Trust It?

As users worry about digital privacy and the mental effects of always-on, always-connected smartphones, many are opting to return to basic models. Our expert analyzes this trend.

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Roman Davydov Roman Davydov
Updated on June 18, 2025

How Django Accelerates Development for AI‑Driven Applications

Django is becoming a popular framework for AI-driven web apps. Our expert offers some tips for getting the most out of it.

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Aneeqa Khan Aneeqa Khan
Updated on June 17, 2025

How to Create a React Native Dropdown Menu

React Native dropdowns can be created using either a modal or inline list. Learn how to do both methods.

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Jye Sawtell-Rickson Jye Sawtell-Rickson
Updated on June 17, 2025

What Is the Fibonacci Sequence?

The Fibonacci sequence is a series of numbers in which each number equals the sum of the two that precede it. For example, 0, 1, 1, 2, 3, 5, 8, 13, 21 and so on.

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