new york times sql assessment

Data mining is the process of discovering relevant information that has not yet been identified before. The Union operator combines the output of two or more SELECT statements. State and county files contain FIPS codes, a standard geographic identifier, to make it easier for an analyst to combine this data with other data sets like a map file or population data. It allows you to refine your selection of feature variables that will be used later for model building. Select the source you want to provide as a list array. You can use the SUMIFS() function to find the total quantity.

Drag Customer Name field on to Rows, and Profit on to Columns.


In the words of one of my colleagues, I help employees avoid getting cracked, hacked and jacked.

Extract: Extract is an image of the data that will be extracted from the data source and placed into the Tableau repository.

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The most common way Ive seen data abused was in analyses where its clearly used to justify a predetermined position rather than create one.

"text": "There are mainly two types of hypothesis testing:

The data is the product of dozens of journalists working across several time zones to monitor news conferences, analyze data releases and seek clarification from public officials on how they categorize cases. I always thought Id be a lawyer. Shortly after producing my first forecast, Donald Trump came into the presidency, which is something I (and the rest of the forecasting community, it feels like) didnt take into account.

The majority of our traffic is from spurious visitation, so we want to find what encourages those users who come back on their own volition.

FALSE = exact match.

Her hobbies include reading, dancing and learning new languages. },{ It was somehow enough to get me a job, and once I was in it, it was a total crash-course in SQL and eventually econometrics.

, A brief history of New York Times Engineerings election readiness efforts to achieve reliable and resilient systems. So, data is always up to date and consistent.. },{

Data measurement is and will continue to be a part of almost everyones job and we have to accept that. Subscribe to the newsletter of The Data Science Roundup. Policy, Posted by alex on When a resident of Florida died in Los Angeles, we recorded her death as having occurred in California rather than Florida, though officials in Florida counted her case in their own records. Below are the types of joins that Tableau supports: A Gantt chart in Tableau depicts the progress of value over the period, i.e., it shows the duration of events. Multivariate analysis can be performed using Multiple regression, Factor analysis, Classification & regression trees, Cluster analysis, Principal component analysis, Dual-axis charts, etc. Im in the Audience Insights Group, and our mission is to help The Times grow by understanding our audience.


HAVING is used to filter values from a group. This is one of the most frequently asked data analyst interview questions, and the interviewer expects you to give a detailed answer here, and not just the name of the methods. And my database experience was actually this ancient green-screen AS-400 based DB to manage warehouse inventory.

The Gantt chart is mostly used as a project management tool where each bar is a measure of a task in the project. Drag the Country field on to the view section and expand it to see the States. There are mainly two types of hypothesis testing: Example: There is no association between a patients BMI and diabetes.

MS Excel, Tableau Collecting the meaningful right data and the right time, Handling data purging and storage problems, Making data secure and dealing with compliance issues, Before working with the data, identify and remove the duplicates.


The historical data files are at the top level of the directory and contain data up to, but not including the current day.

Cases and deaths for Kansas City are reported as their own line. Read part one here. select top 4 * from product_price order by mkt_price desc; Now, select the top one from the above result that is in ascending order of mkt_price. Puerto Rico does not report deaths at the municipio level.

The technology behind The Times is driven by the contributions of different technologists across the organization.

This feature distinguishes time-series data from cross-sectional data. Read part two here. A career in the field of data analytics is highly lucrative in today's times, with its career potential increasing by the day.

I, A Q&A with The New York Times Live design team.

Meeting is an ongoing series that features colleagues from different corners of The New York Times Company. By Alexandra Shaheen, Megan Araula and Shawn Bower This is part two of an ongoing series about how The Timess is working to improve the resilience of its systems. Can you tell us how your data stack looks like?

Extract the value 8 using 2D indexing.

Systematic sampling (Raw CSV file here.

Data Engineer | Data Science |Machine Learning |Artificial Intelligence. Daniel Mill is Director of Marketing Analytics at The New York Times, where he oversees measurement of acquisition and retention efforts as well as forecasting. Treemaps are a relatively simple data visualization that can provide insight in a visually attractive format. All cases and deaths are counted on the date they are first announced. Each date includes all cases and deaths announced that day through midnight Eastern Time.

Then navigate to Settings > Allow > List.


Theres definitely a wrong way.

The New York Times Data Analyst interview span across 10 to 12 different question topics.

Senior Software Engineer on the UX Foundations Team.

By Yuliya Parshina-Kottas and Anjali Singhvi To commemorate the centennial of the Tulsa race massacre, graphics editors at The New York Times analyzed archival maps, city directories, census data, newspaper clippings and survivor accounts to reconstruct Greenwood, a prosperous Black neighborhood in Tulsa, Okla., that perished at the hands of.

"@type": "Question",

Lets add an Address column to that data frame. Making data secure and dealing with compliance issues"

MS PowerPoint"

It is also a response to a fragmented American public health system in which overwhelmed public servants at the state, county and territorial level have sometimes struggled to report information accurately, consistently and speedily.

I have a lot of lawyers in my family and I always gravitated towards jobs where debate is a significant component. In Excel, you can use the TODAY() and NOW() function to get the current date and time. 3. Joins in Tableau work similarly to the SQL join statement. This exercise is not to test how well a candidate has memorized SQL functions, so we encourage candidates to use documentation or other online sources if they get stuck. "name": "3. Focus on the accuracy of the data. And when officials in some states reported new cases without immediately identifying where the patients were being treated, we attempted to add information about their locations later, once it became available.

Using this table, lets find the records for movies that were directed by Brad Bird. Live consists of blogs, briefings and chats, providing in-depth coverage for a wide variety of news events.

Meanwhile, in data blending, each data source contains its own set of dimensions and measures.

Right-click on Sum of Sale Total and expand Show Values As to select % of Grand Total.

Drag Profit on to Colour, and Quantity on to Label.

For answers to common questions, see our [FAQ.] Another key metric we have is breadth of sections, as users who explore the site are more likely to subscribe. But it would be insane to think this is a full-scale solution for everyone consuming our work or for every question someone may have.

This is one of the most basic data analyst interview questions. 2. What are some pitfalls?

"@type": "Question", ",

In the below example, we are checking if the marks are greater than 45. Planned events, New York Times graphics editors worked with librarians and archivists to piece together a picture of Greenwood before it was burned. LOD in Tableau stands for Level of Detail.

This feature distinguishes time-series data from cross-sectional data." Drag top and bottom customers set on to Filters, and Profit field on to Colour to get the desired result. But because of the patchwork of reporting methods for this data across more than 50 state and territorial governments and hundreds of local health departments, our journalists sometimes had to make difficult interpretations about how to count and record cases. Its a lot to wade through, and definitely a challenge to weigh differing methodologies (which often overlap) so as to present a holistic picture of your company.

All the combined sheets or tables contain a common set of dimensions and measures.

What are some of the problems you are currently tackling at The New York Times? The data set and map files are now open source.

Because these are updated throughout the day, they can have inconsistent counts, are more likely to contain errors, and should be considered less reliable than the historical data. Sometimes, cases are first reported in one county and then moved to another county.

Which are the technical tools that you have used for analysis and presentation purposes? 4.

Meeting is an ongoing series that features New York Times employees from different corners of the company. "text": "The common problems steps involved in any analytics project are:

There are majorly five types of sampling methods:

A key difference between the historical and live files is that the numbers in the historical files are the final counts at the end of each day, while the live files have figures that may be a partial count released during the day but cannot necessarily be considered the final, end-of-day tally.

You can either use the concatenate() or the hstack() function to stack the arrays.

Collecting the meaningful right data and the right time

Select the entire table range, click on the Insert tab and choose PivotTable, Select the table range and the worksheet where you want to place the pivot table.

There were 2 interviews in total with HR and Director of IT, and lastly with the Head of Marketing 1 - basic questions and resume 2 - some behavioural.

Senior information security trainer.

Output: Display the sum of the square for the first four natural numbers.

Under the Marks card, change SUM(Sales) to Bar and SUM(Profit) to Line and adjust the size.

In a graph, normal distribution will appear as a bell curve.


In the live files, the case and death fields have the following definitions: The live data can be found in files at the U.S. level in the us.csv file, at the state level in the states.csv file, and at the county level in the counties.csv file. (I promise thats not a plug, I read it seven years before I met him). The goal of /r/SQL is to provide a place for interesting and informative SQL content and discussions. Theres no such thing as a perfect analysis and these caveats are important for leveraging the output correctly.

"name": "4. "acceptedAnswer": {

Here is the output to print all even numbers between 30 and 45.

In this 15 minute demo, youll see how you can create an interactive dashboard to get answers first.

If you were to have a completely different career, what would that be? What are some new innovations and what still remains a challenge from a user perspective?

We are providing two sets of data with cumulative counts of coronavirus cases and deaths: one with our most current numbers for each geography and another with historical data showing the tally for each day for each geography. 3.

All of them are located in the center of the distribution, 68% of the data falls within one standard deviation of the mean, 95% of the data lies between two standard deviations of the mean, 99.7% of the data lies between three standard deviations of the mean, Null hypothesis: It states that there is no relation between the predictor and outcome variables in the population. The stored procedure is an SQL script that is used to run a task several times. The above function will return 6 as the result, i.e., 17th December is a Saturday.

Judgmental or purposive sampling"

"acceptedAnswer": { },{

Below is an example of a subquery that returns the name, email id, and phone number of an employee from Texas city.

Internally, we feel the correction isnt to limit or govern access, rather try to train everyone across the company to have more data analytics chops. In this article, you will be acquainted with the top data analyst interview questions, which will guide you in your interview process. "text": "1.

Most Times, How New York Times Engineering fortified our systems ahead of the 2020 presidential election. Answer all of the given differences when this data analyst interview question is asked, and also give out the syntax for each to prove your thorough knowledge to the interviewer. Python, R, SPSS

Data for the Bristol Bay Borough and Lake and Peninsula Borough county equivalents are reported as a single "Bristol Bay plus Lake and Peninsula" area, and data for the Yakutat City and Borough and Hoonah-Angoon Census Area county equivalents are reported together as "Yakutat plus Hoonah-Angoon".

Rebecca Lai, Alex Lemonides, Allison McCann, Richard A. Oppel Jr., Jugal K. Patel, Kirk Semple, Julie Walton Shaver, Anjali Singhvi, Charlie Smart, Mitch Smith, Albert Sun, Derek Watkins, Timothy Williams, Jin Wu and Karen Yourish.

"@type": "Question",

1. What are the different types of Hypothesis testing?

Well now I kind of want to work for NYT. COUNT function returns the count of numeric cells in a range

Know what skills are necessary for New York Times Data Analyst roles. Drag Category and Subcategory columns into Rows, and Sales on to Columns.

What are your pronouns?

And there is also another set of governments that is reporting the two types of numbers combined without providing a way to separate the confirmed from the probable.


SQL Interviews @ the NYTimes. The number of deaths in New York City also includes probable deaths reported by the New York City health department.

In general, we are making this data publicly available for broad, noncommercial public use including by medical and public health researchers, policymakers, analysts and local news media.

"@type": "Question", The New York Times experiences traffic levels that ebb and flow with the news cycle. }. The performance drops considerably over the test set. We have used this data to power our maps and reporting tracking the outbreak, and it is now being made available to the public in response to requests from researchers, scientists and government officials who would like access to the data to better understand the outbreak. A quick look at their wiki tells me they have 1300 staff writers, were founded in 1851, and have almost 3 million digital subscribers., update colleges readme to note it is not currently being updated, *NEW DATASET*: Estimates of mask-usage by county from a nationwide su, NEW: We're publishing files detailing the outbreak in prisons, jails .

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