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.
Maria Gaetana Agnesi is best known from the curve called the Witch of Agnesi (see illustration from her text Analytical Institutions). Agnesi wrote the equation of this curve in the form y = a*sqrt(a*x-x*x)/x because she considered the x-axis to be the vertical axis and the y-axis to be the horizontal axis [Kennedy].