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Millennials vs. Gen Z: Why Marketers Need to Know the Difference

In recent years, there’s been a common misconception that Gen Z and millennials are essentially the same.
When companies discuss reaching younger audiences, many often lump Gen Z and millennials into the same group and create one campaign strategy that they believe fits both groups.
Sure, many millennials and Gen Zers are considered “young adults.

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Using Matched Pairs to Test for Cannibalization

When a company introduces a new product into the same market served by an existing one, it is possible that the new product will achieve success at the expense of the first. For example, when Netflix introduced movie downloading, it knew it would put a dent in DVD subscriptions. This is called cannibalization.

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How to Leverage Model-Driven Architecture for Better Application?

Designing an application is not a child’s play in any sense and developing an enhanced user experience for the same is quite a task at hand. For this matter, there are numerous approaches adopted by developers and enterprises to design better application and its interface to transform the entire user experience.

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Advice to aspiring data scientists: start a blog

Last week I shared a thought on Twitter:
When you’ve written the same code 3 times, write a functionWhen you’ve given the same in-person advice 3 times, write a blog post— David Robinson (@drob) November 9, 2017
Ironically, this tweet hints at a piece of advice I’ve given at least 3 dozen times, but haven’t yet written a post about.

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Variance of a Product of Random Variables

If X(1), X(2), …, X(n) are independent random variables, not necessarily with the same distribution, what is the variance of Z = X(1) X(2) … X(n)? It turns out that the computation is very simple:
In particular, if all the expectations are zero, then the variance of the product is equal to the product of the variances. See here for details.

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State Rating Agencies

People who buy cars can often get independent evaluations on them from auto mechanics. Same with house inspectors. More generally, consumers can get help in evaluating products from Consumer Reports, while bond investors can get help evaluating bonds via bond rating agencies like Moody’s. Charity donors can use GiveWell.

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Advice for aspiring data scientists and other FAQs

Aspiring data scientists and other visitors to this site often repeat the same questions. This post is the definitive collection of my answers to such questions (which may evolve over time).
How do I become a data scientist?
It depends on your situation. Before we get into it, have you thought about why you want to become a data scientist?
Hmm… Not really.

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