Python in Excel
Python is now inside Microsoft Excel. Really? Python is only in Excel if you have Microsoft 365 on […]
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A/B Testing
What is A/B testing? It is an experiment with two groups to establish which group is better. The […]
Data Maturity
What is data maturity? Data maturity is a measurement that demonstrates the level at which a company makes […]
Hypothesis Test of a Coin Toss
Let’s look at a simplified hypothesis test. To begin learning about hypothesis testing, let’s look at a very […]
Measures of Dispersion
After considering measures of central tendency and asymmetry in our discussion of descriptive statistics, it’s time to look […]
Conditional Probability
Let’s discuss how to calculate probability for two or more dependent events. This type of probability is known […]
Artificial Intelligence (AI) Introduction
Artificial intelligence (AI) is a big topical topic. Machine learning falls under, or is part of, AI. Artificial […]
Data Science Hierarchy of Needs
In 2017, Monica Rogati published the hierarchy of needs diagram in an article that showed where AI and […]
Data Engineering Life Cycle
The data engineering life cycle (lifecycle) helps us to look at the bigger picture. It’s tempting to dive […]
Data Pipelines Introduction
Data pipelines are sets of processes that move and transform data from different sources to a specific destination, […]
History of Data Engineering
In the early 2010s, we had huge increases in data volumes, velocity, and variety leading to the term […]
Data Science Careers
Some data science careers or job titles are: data scientist, data analyst, business intelligence analyst (BI), project manager, […]