For example, if the mean score on a certain standardized test is 1,200 and the standard deviation of scores is 100, you would expect 95 percent of test takers to get a score within two standard deviations of the mean, or between 1,000 and 1,400. Related Reading: The Difference Between 3 Sigma & 6 Sigma.ean. The mean value or score of a certain set of data is equal to the sum of all the values in the data set divided by the total number of values. A mean is the same as an average.
James Madison. James Madison, America's fourth President (1809-1817), made a major contribution to the ratification of the Constitution by writing The Federalist Papers, along with Alexander Hamilton and John Jay. In later years, he was referred to as the Father of the Constitution..
 James Madison was the fourth president and  served two terms (1809-1817)  Father of the Constitution because he played  an important role in its writing and also kept â¦ notes at the  Convention which proved to be historically valuable.