The standard deviation is usually presented in conjunction with the mean and is measured in the same units. In many datasets the values deviate from the mean value due to chance and such datasets are said to display a normal distribution.
1 Entree (entrÃ©e) - Ballet sometimes an entree entrÃ©e is composed as part of; a suite but there it is purely instrumental music and no dance. 2  Is performed it is, an introduction-a march like piece played during the entrance of a, dancing group or played before. 3  A ballet usually/in 4.  4 timelthough the term was applied to architecture and art criticism in the 19th century, it wasn't until the 20th century that the term baroque was applied to music.
A Brief History of Ballet. Ballet, as we know it today, began during the Renaissance around the year 1500 in Italy. In fact, the terms ballet and ball as in masked ball, come from the Italian ballare, to dance. When Catherine de Medici of Italy married the French King Henry II, she introduced early dance styles into court life in France.