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..
See all translations. uk â /ËÃ¦É¡.rÉª.É¡Ét/ us â /ËÃ¦É¡.rÉ.É¡Ét/. âº something formed by adding together several amounts or things: They purchased an aggregate of 3,000 shares in the company. Snowflakes are loose aggregates of ice crystals. Arsenal lost the second game, but got through to the final on aggregate (= adding together the goals in both matches).