When working with a large data set, it can be useful to represent the entire data set with a single value that describes the middle or average value of the entire set. In statistics, that single value is called the central tendency and mean, median and mode are all ways to describe it.o find the variance in a data set, subtract each number from the mean, and then square the result. Find the average of these squared differences, and that is the variance in the group. In our original group of five servers, the mean was 99.
Brain Shunt. A brain shunt is a narrow piece of tubing that is inserted into the brain in the fluid-filled ventricle. The tubing is then passed under the skin into another area of the body, most often into the abdomen.Occasionally, the shunt tubing can be placed into one of the chambers of the heart or the lining of the lungs. brain shunt is a narrow piece of tubing that is inserted into the brain in the fluid-filled ventricle.
1. Ventriculoperitoneal Shunt. Once the patient has been diagnosed with Dandy Walker Syndrome, the main treatment is a ventriculoperitoneal shunt. A neurosurgeon puts one end of a little tube into a ventricle that is in the brain. The other end of the tube is placed under the skin and runs down to the abdominal cavity.