Data science interviews encompass a variety of challenging questions to test your knowledge in machine learning, probability, SQL and more. Hone your skills with these questions.
A fact table contains the primary keys to a referenced dimension table, and the dimension table contains the descriptive information. They make up the key components in star schema.
After collecting life stats data for a year, here’s what you can learn by applying data analysis like correlation studies, time series analysis, Fourier transform and more.
The 1.5 IQR rule determines that any data point that’s 1.5 IQR points below the first quartile of data or above the third quartile is an outlier. Here’s why it’s 1.5 times IQR.
HashMap is a popular data structure in Java that uses the Map interface and a hash table to provide efficient access and manipulation of data based unique keys.
