Journal Article A new method for adding a parameter to a family of distributions with application to the exponential and Weibull families Get access ALBERT W. MARSHALL, ALBERT W. MARSHALL 2781 West Shore Drive, Lummi Island, Washington 98262, U.S.A. Search for other works by this author on: Oxford Academic Google Scholar INGRAM OLKIN INGRAM OLKIN Department of Statistics, Stanford UniversityStanford, California 94305-4065, U.S.A. e-mail: iolkin@stat.stanford.edu Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 84, Issue 3, September 1997, Pages 641–652, https://doi.org/10.1093/biomet/84.3.641 Published: 01 September 1997 Article history Received: 01 December 1994 Revision received: 01 October 1996 Published: 01 September 1997