CompTIA Strata *In the event that you fail your first (1st) attempt to pass any CompTIA certification examination, CompTIA does not require any waiting period between the first (1st) and second (2nd) attempt to pass such examination.
See normal distribution for the bell curve in statistics. The Bell Curve is a controversial, best-selling 1994 book by Richard J. Herrnstein and Charles Murray exploring the role of intelligence in American life. The authors became notorious for the book's discussion of race and intelligence in Chapters 13 and 14.
DEFINITION of 'Bell Curve'. The most common type of distribution for a variable. The term bell curve comes from the fact that the graph used to depict a normal distribution consists of a bell-shaped line.The bell curve is also known as a normal distribution.The bell curve is less commonly referred to as a Gaussian distribution, after German mathematician and physicist Karl Gauss, who popularized the model in the scientific community by using it to analyze astronomical data.EFINITION of 'Bell Curve'. The most common type of distribution for a variable. The term bell curve comes from the fact that the graph used to depict a normal distribution consists of a bell-shaped line.