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..
The Snowflake Method refers to a method of plot development. Each plot element starts with a point. When all the major plot elements have been recorded, expand each point to a paragraph containing details of the significance of each point. Expand the paragraphs to pages and so on and so forth. The idea of the Snowflake Method is that, you can avoid major plot issues requiring major rewrites because you already have done that work. In future you should spend less time staring at a blank page.