Getting Started

Mastery of this intuitive statistical concept will advance your credibility as a decision maker.

Bayes Theorem gives us a way of updating our beliefs in light of new evidence, taking into account the strength of our prior beliefs. Deploying Bayes Theorem, you seek to answer the question: what is the likelihood of my hypothesis in light of new evidence?

In this article, we’ll talk…


Even in the aftermath of the replication crisis, statistical significance lingers as an important concept for Data Scientists to understand

There are many types of statistical testsnull hypothesis significance testing predominates.

With this technique, the objective is to test an observation against the null hypothesis. You can think of the null hypothesis as the status quo. It represents the situation where the intervention does not work.

Significance testing


Drop in for some tips on how this fundamental statistics concept can improve your data science.

The distribution of data refers to the way the data is spread out. In this article, we’ll discuss the essential concepts related to the normal distribution:

  • Ways to measure normality
  • Methods to transform a dataset to fit the normal distribution
  • Use of the normal distribution to represent naturally occurring phenomena…


The tools you need to succeed with machine learning in the new year.

Web Resources

🔦 ML Showcase — great for project inspiration, this repository of data science projects from Team Paperspace should certainly get your wheels turning.

🎓 Codecademytime after time, I find myself recommending this powerful learning platform to folks breaking into coding or looking to pick up new languages. The…


The sixth tool is coffee.

In Stephen Covey’s masterful 7 Habits of Highly Effective People, the seventh habit is “sharpen the saw.” This refers to enhancing our assets to seek continuous improvement in our work. As Abe Lincoln said,

Give me eight hours to chop down a tree, and I will spend the first six…


A step-by-step walkthrough for a simple portfolio project using sklearn’s clustering algorithm to create an interactive dashboard for your city.

Through unsupervised learning, a data scientist can explore an unlabeled dataset to produce categories or clusters. You can use this technique to create a neighborhood explorer tool to help residents and visitors develop an understanding of points of interest near where you live.

You can use a publicly available…


Office Hours

The size of the digital universe increased 3000% in the past decade. Here’s how to manage all your organization’s data.

This article will help you understand the whys and hows of implementing better data management practices at your organization.

In 2020, the size of our digital universe is 40 zettabytes. By comparison, the world had produced just 1.2 zettabytes of data by the year 2010. That represents explosive growth of…


Statistics, SQL, Python, and machine learning are all important capabilities to master in the year ahead.

2020 has been a rough year. Amidst the pandemic, economic fallout, quarantine orders, racial reconning, a stressful U.S. election, holidays spent separated from loved ones, important milestones passed without the recognition they deserved, and other deeply tragic circumstances — something troubling happened to me.

I lost my jeans.

After six…


Post-COVID, machine learning is increasingly crucial for business success.

COVID-19 accelerated the end of 20th-century trends and entrenched the dominance of 21st-century paradigms. For millions around the world, the pandemic response will forever shape the way we work, where we chose to live, and how we engage in commerce.

I’m telling everyone to update their model. You should really…


Python is the fastest growing, most-beloved programming language. Get started with these Data Science tips.

With Python’s straightforward, human-readable syntax, anyone can access impressive capabilities for scientific computing. Python has become the standard language for data science and machine learning, and it was rated in the top three most loved languages in Stack Overflow’s 2020 Developer Survey.

If you’re a newcomer to this much loved…

Nicole Janeway Bills

Data Scientist at Atlas Research in Washington, DC | Certified Data Management Professional | www.facebook.com/groups/cdmpstudygroup

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store