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..
One hero of the War of 1812 was a woman. First lady Dolley Madison stayed in the White House until the last minute to save precious treasures, notably a famous portrait of George Washington. Dolley Madison (1768â1849) was an early first lady of the United States of America, wife of the fourth U.S. president, James Madison (1809â1817). She is still celebrated as one of the most colorful and courageous first ladies. She was known for her beauty, charm and kindness.