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)
1 To orbit a central point: The planets revolve around the sun. 2  To turn on an axis; rotate. See Synonyms at turn. 3  To be arranged as revolving credit: His credit line revolves. 4  To be centered: Their troubles revolve around money management.  To cause to revolve.