That arises from inaccurate sampling frame, data clarification or verification methods, reporting or coding of data, and/or specifications. It may also arise from poorly designed survey questionnaires, improper sample allocation and selection procedures, and/or errors in estimation methodology.
riff (rÉªf) n. 1. an ostinato melodic phrase accompanying a soloist in jazz or rock music. 2. any variation or improvisation, as on an idea. v.i. 3. to perform a riff. [1930â35; perhaps alter. of refrain 2] riff Past participle: riffed Gerund: riffing
An appoggiatura (/ É Ë p É dÊ É Ë t jÊÉr É /; Italian: [appoddÊaËtuËra]; German Vorschlag, Vorhalt; French Port de voix) is a musical ornament that consists of an added non-chord note in a melody that is resolved to the regular note of the chord.