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 Verchovyna cymbaly is very popular in the Mizhirja and Volovec' districts. This trapezoid-shaped instrument, measuring 50 to 70 centimeters in length and 25 to 30 centimeters in width, is light, portable, and produces a resonant sound. A group of three strings is called a bunt.