A histogram is a chart that shows frequencies for equal width intervals of values of a metric variable. A company wants to know how monthly salaries are distributed over 1,110 employees having operational, middle or higher management level jobs. The screenshot below shows what their raw data look like.
The snowflake schema is a variation of the star schema, featuring normalization of dimension tables. In computing, a snowflake schema is a logical arrangement of tables in a multidimensional database such that the entity relationship diagram resembles a snowflake shape. The snowflake schema is represented by centralized fact tables which are connected to multiple dimensions..
Gently peel snowflake from wax paper or foil. Attach 10-inch clear thread to one spoke, weaving in end. Wrap fishing line around tree branch (or tape to ceiling or any overhead surface) and watch the snowflake twirl freely whenever you walk by! Snowflake also may be taped to window or tied to doorknob or cabinet handle.