A median-priced home in Houston costs $199,300 and requires a salary of $49,983.37 to afford monthly payments of $1,166.28. San Francisco topped the list for the highest salary required to purchase a median-priced home, which costs $742,900.
A centralized database is a collection of information at a single location accessible from numerous points, in contrast with a distributed database where the information is spread out across multiple sites.
Normalization usually means transforming the data you are working with to a common frame of reference. I can give you a good example of data normalization for one of the areas I work in a lot. It is a function called the Z-Score. What it does is allows you to convert and data that is a Normal Distribution into a frame of reference where the Mean is Zero and the variation is expressed in standard deviations. The reason that data is usually normalized is that it takes out the matter of scale in the data and allows as much as possible an âapples to applesâ comparison of data.