Quartiles are the values that divide a list of numbers into quarters: 1  Put the list of numbers in order. 2  Then cut the list into four equal parts. 3  The Quartiles are at the cuts.
Revolve (verb) to turn or roll round on, or as on, an axis, like a wheel; to rotate, -- which is the more specific word in this sense. Revolve (verb) to move in a curved path round a center; as, the planets revolve round the sun. Revolve (verb) to pass in cycles; as, the centuries revolve. Revolve (verb) to return; to pass. Revolve (verb)
A prequel is a literary, dramatic, or filmic work whose story precedes that of a previous work, by focusing on events that occur before the original narrative. A prequel is a work that forms part of a back-story to the preceding work. All prequels are, by definition, essentially sequels in that they expand on a previous or preceding work.. The term is a 20th-century neologism that is a portmanteau of the prefix pre- (from Latin prae, before) and sequel.