Standard deviation is the square root of variance, but variance is given by mean, so divide by number of samples. That is : 38.5/10 = 3.58. But standard deviation equals the square root of variance, so SD = the square root of 3.85 which is 1.96.
The virginal(s): The virginal, also called virginals, usually has a rectangular case with the keyboard across the wide side. As with the spinet, the strings run side-to-side relative to the player. Again, it saves on wallspace, and again they rate their own FAQ. Virginals were fairly early, 15th and16th centuries.
The viol /ËvaÉªÉl/ or viola da gamba [ËvjÉËla da É¡ËÉ¡amba] is any one of a family of bowed, fretted and stringed instruments that first appeared in Spain in the mid to late 15th century and was most popular in the Renaissance and Baroque periods.lternate tunings (called scordatura) were often employed, particularly in the solo lyra viol style of playing, which also made use of many techniques such as chords and pizzicato, not generally used in consort playing. An unusual style of pizzicato was known as a thump.