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What Does A Statistician Do?

What Does A Statistician Do?

Statisticians provide algorithmic muscle for the machine learning engineer and data scientist’s products. Like most of the careers that are branches of statistics, they are likely to be engaged in extensive data analysis and interpretation,…
automatic data collection occurs on the highway

With or Without Your Knowing: Automatic Data Collection

There are many ways to collect data including surveys, interviews and research experiments. Most data is collected with the knowledge and consent of the people involved. But in recent decades, with the growth of the Internet and other computer…
Sampling Data

Segmenting Data: Quartiles, Deciles, Percentiles

We often talk about the top 25% or top 10% or even top 1% of something. When we are segmenting data into percentages we commonly are talking about quartiles, deciles and percentiles. Quartiles divide the data into four parts; deciles divide…
file explaining the field of data science

The History of the Data Science Field

Data Science: Where did it come from and what is it now? The field of data science is relatively new, though the ideas that it encompasses are not. Data science is an outgrowth of statistical analysis and has been made possible by the ever-stronger…
Some graphs can report incorrect data findings due to lying with statistics

Not the Whole Truth: Lying with Statistics

Data analysis and the field of statistics are thought to be hard sciences: data is gathered, analyzed using certain processes – often precise mathematical ones – and findings are reported. But this is not always the case. We do not always…
Libriaries are storehouses of data

Storehouses of Data

Data Central: The Library What is one of the most common storehouses of data in any community? The library. And who maintains all this information? Librarians, of course. So librarians are far from immune to needing to understand how to collect,…
Graph showing Consumer Price Index

Using a “Market Basket”: The Consumer Price Index

Most of us have heard of the Consumer Price Index (CPI), But just what is it and what does it tell us? The CPI is a monthly index produced by the United States Department of Labor’s Bureau of Labor Statistics that “represents changes…
Data Mining

The Search Is On: An Introduction to Data Mining

So much data is now collected that, along with the power of computers and statistical methods, it is not very difficult for us to search these data to find relationships among variables that can be used to target efforts in many fields, including…
Collect data on theme parks

Collecting Data in Travel

Where the People Are: The Most Visited Attractions Summertime is travel time. In the travel industry, it is critical to determine where people will be traveling and business need is greatest. Data tracks this information to help inform forecasts…
Data Collection on Injuries

Home, Unsafe Home: Data Collection on Preventable Injuries

We all want to feel safe and sound in the comfort of our homes, but many people would be surprised to learn that the typical household is the place where most preventable injuries occur. This is because we spend more time there than anywhere…