A post for students in data analytics: Variance and standard deviation are both measures of dispersion used in data analysis, but they differ in their calculation, interpretation, and application. Here’s a breakdown of the key differences: Definition Calculation Units Interpretation Application to Normal Distribution In summary, while both variance and standard deviation measure the spread Read More
Category: Data Analytics
Data Wrangling
Another post for data analytics students… Data wrangling, also known as data manipulation, is the process of preparing data for use, ensuring it’s in a specific shape or format that applications can utilize. It involves skillfully handling and managing data to make it usable for analysis. Methods for data wrangling include: • Merging data—Combining datasets Read More
Bias in AI Decision-Making
Historically, humans have been the decision-makers in areas such as hiring, loan eligibility, and medical diagnoses. However, artificial intelligence (AI) has advanced to the point where it can perform certain tasks more skillfully and reliably than humans. AI is now utilized in hiring, loan assessments, housing, medicine, and other sectors due to its enhanced accuracy. Read More
Sources of Data
Another post for data analytics students. There are several methods available for collecting data, including utilizing public sources, collecting your own data, and automated data collection through data pipelines. Utilizing public sources of data: • Public databases offer various datasets for free, readily available for download. These sources may be pre-cleaned and organized. • Open Read More
What is SQL?
Here is a post for my students who are beginning there work in data analytics. SQL (Structured Query Language) is a programming language designed to work with a relational database management system (RDBMS). Key points to remember about SQL: SELECT FROM WHERE The SELECT is follows by the names of the columns you want in Read More