statistics

Is Charlotte Really all that Weird? A Look at Religious Demographics

This is Part 3 of our continuing series fact-checking the Huffington Post article titled, “15 Reasons Why Charlotte is the Weirdest.” If you missed our first two posts, you can read Part 1 by clicking here and Part two by clicking here.

As in our earlier posts, we’ll be taking a look at how Charlotte compares to the other U.S. cities that rank among the top 25 according to population (Charlotte is currently ranked # 17).

In this post, we’ll specifically take a look at data on the religious demographics of our city in order to address the following claim about Charlotte:

Huffington Post Claim: “Everything Is Oddly Evangelical”

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Is Charlotte really all that weird? A look at number of notable residents

This is Part 2 of our continuing series investigating the claims made about Charlotte in a recent Huffington Post article titled, “15 Reasons Why Charlotte is the Weirdest.” Click here to read Part 1, in which we investigated the claim that no one currently living in Charlotte is actually from nearby surrounding areas.

In this post, we’re taking a closer look at the following claim:

Huffington Post Claim:

Charlotte has three celebrities (Michael Jordan, Cam Newton, and Ryan Lochte), which makes it relatively easy to stalk spot them around town.

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Dining out with Bayes Theorem (Updated)

Imagine you’re looking for a place to eat. Say for example you’re in the mood for Mexican food. So, you go to Yelp and type “Mexican” into the search bar and up come a variety of results.

After scrolling through the list, you pick one that seems like it could be good. It’s nearby, not too expensive, and most importantly it gets a positive rating on the basis of a fairly decent number of reviews. Let’s say it gets 4 stars based on 17 reviews.

Here’s the question I pose to you – just how much can you trust this 4 star rating? How do we know that this rating is a fairly accurate reflection of the quality of the food and overall dining experience at this restaurant? And how do we know that this rating is not merely due to some other extraneous circumstance? (more…)

Top 40 Burger Joints in Charlotte

We’re back with our round up of the best places to get burgers in and around Charlotte.

As described in my last post, I’ve made some changes to our statistical model in order to assign greater importance to the number of reviews a restaurant receives on Yelp. These changes should further safeguard against the possibility that restaurants with high ratings based on few reviews are ranked as being superior to restaurants with slightly lower ratings based on a much larger number of reviews.

So, below is our revised list of the top 40 places to get burgers in and around the Charlotte area (click image to enlarge): (more…)

correlation between number of reviews and discrepancy

What’s the best place in Charlotte to get Thai Food? A trial run of our statistical model (Part 1).

In this post, we’re taking the Charlottology Statistical Model of Restaurant Reviews out for a test spin by applying it to some real restaurant ratings from Yelp. I described the workings of the model in my last post, so I won’t go into as much detail on methodology in this post. If you have any specific questions regarding our methods, feel free to check out that earlier post.

We’re focusing here on the question of, “where is the best place in Charlotte to get Thai food? (more…)

Figure 3B

The Charlottology Statistical Model of Restaurant Reviews

In my last post, I outlined what I see as being one of the more frustrating aspects of trying to select a restaurant based on search results from Yelp.com. If you haven’t read that post, my argument was essentially that Yelp seems not to give enough weight to the number of reviews upon which average restaurant ratings are based. Because of this, Yelp will for instance rank restaurants with 4.5 stars based on 10 reviews as being superior to restaurants with 4 stars based on 400 reviews. This is a problem because the difference in average ratings between these two restaurants may be entirely a statistical artifact. In reality, there may be no difference in quality between these two restaurants, or the restaurant with the higher number of reviews (and ranked lower by Yelp) may actually be far superior. (more…)

yelp burger ranking

Toward a Data-Driven Approach to Dining Out in Charlotte

Our goal here at Charlottology is to take a data-driven approach to the description and analysis of all things related to life in Charlotte, NC. That means applying numbers, graphs, and statistics to as many areas of life as possible. And one area we plan to focus on heavily is the all-important decision about where to go out to eat in the Queen City. (more…)