Almost all of the students' scores are below the average. Therefore, in this case the mean is not a good representative of the central tendency of this sample. The median, on the other hand, is the value which is such that half the scores are above it and half the scores below. So in this example, the median is 8. There are four scores below and four above the value 8. So 8 represents the mid point or the central tendency of the sample.
Definition of duct. 1 : a bodily tube or vessel especially when carrying the secretion of a gland. 2a : a pipe, tube, or channel that conveys a substanceb : a pipe or tubular runway for carrying an electric power line, telephone cables, or other conductors.
There is a bile duct from the liver to the small intestine which is joined by a duct from the gallbladder and from the pancreas. This main duct is called the common bile duct. It is common to the liver, gallbladder and farther down line, to the pancreas as well. When someone refers to the bile duct, they are usually referring to the common bile duct. It's function is to allow for the transportation of bile and digestive enzymes.