Source: https://content.webengage.com/wp-content/uploads/sites/4/2017/09/Easiest-Guide-to-Cohort-Analysis-1-1.png

What is a cohort?

A cohort is a group of people who share something in common within a specific time frame. For example, a group of people born in New York in the year 1991. This is an example of a “birth cohort”.
Similarly, in the business world cohorts are made up of customers…

In regression, the standard linear model describes a relationship between Y and a set of variables X1, X2, . . ., Xn and we fit this model using the least squares.

However, this standard linear model is not perfect and can be improved by using some fitting procedures. One such…

Photo by Carlos Muza on Unsplash

Being a Business Analytics graduate student, I’ve always leveraged python’s open libraries: Matplotlib, Ggplot, Bokeh and Seaborn for data visualizations. From data analytics and visualization point of view these libraries are remarkable but the lengthy code part can sometimes be a tad time consuming. This is where Tableau comes in…

Credit Card Fraud — Every business’s nightmare!

For years, we’ve been using credit cards everywhere, for everything - be it at gas station, groceries or (not to forget the most popular one) online shopping.

Source: Credit-Scam-Phone-Lock.jpg

And why not? It gives us instant access to major purchasing power without the inconvenience of…

Aasma John

MSBA candidate at Columbia University

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