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
RIFF files are also associated with Recource Interchange File Format Bitmap Image, Audio File and FileViewPro. Additional types of files may also be using the RIFF file extension. If you are aware of any other file formats using the RIFF file extension, please contact us so that we can update our information accordingly.