How to Calculate the Median. The median is the middle score of a distribution. Consider this set of numbers: 5, 7, 9, 9, 11. Since you have an odd number of scores, the median would be 9. Now, what happens when you have an even number of scores so there is no single middle score. Consider this set of numbers: 1, 2, 2, 4, 5, 7. Since there are an even number of scores, you need to take the average of the middle two scores.
The platypus (Ornithorhynchus anatinus) also known as the duck-billed platypus is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.
The platypus has a flat, streamlined body. They have a muzzle shaped like the bill of a duck, webbed feet, and a tail like that of a beaver.The bill is not hard like that of a bird. It is actually an elongated muzzle covered with a leathery skin.The bill and feet of a platypus are black while the fur is usually a dark brown color.he platypus has a flat, streamlined body. They have a muzzle shaped like the bill of a duck, webbed feet, and a tail like that of a beaver.