Keith A. Childs

The most important take away from the course for me was the use of SQL and Excel. Extracting information, manipulating data, and updating databases with functions that other users often have no familiarity using. I would tell an employer that I have gained a coveted set of skills working with big data through course assignments. These set of…[Read more]

1.) A business decision that could be made using a decision tree is whether to stay in your current role at your place of employment or explore other career opportunities. Data that can be collected for to make this decision is income, daily/weekly hours, culture, benefits, and location.

One of my favorite apps right now is Zillow. Zillow uses R to produce statistical predictive products. Zillow predicts full estimated costs of renting or purchasing real estate through the use of R. Zillow and its use of R allows its users to make better data driven decisions.
http://strataconf.com/stratany2012/public/schedule/detail/26345

What Are The Hardest Languages to Learn?

The infographic successfully depicts the level of difficulty of learning foreign languages for native English speakers. The graphic shows the complexity of the languages, the number of class hours needed to become proficient, and displays the number of native…[Read more]

An example where you could use a table join to retrieve information is if you wanted to obtain information of a firm. You could have an employee table that displays an employee’s information such as DOB, age, address, etc. and in a compensation table you would have salary, benefits, bonuses and other forms of compensation. If you were interested i…[Read more]

The trickiest thing about creating an ERD diagram I believe is finding the cardinality between entities. This can be a bit tricky since cardinality seems to be very subjective. The way an individual interprets the problem description could be right for one individual but wrong for another. If individuals can correctly explain the choice of…[Read more]

Before I decided to go back to school full time I was working at Lowes a retail store specializing in home projects. At Lowes I operated various information systems inputting all of a customer’s information such as name, address, phone number, what the customer purchased and for how much, and also processing other raw data in the like. With this…[Read more]