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.
No wonder it is called âduck-billedâ. The platypusâs head, trunk, and tail are covered with brown fur, which is thick and water proof. Its fur allows it to swim in waters as cold as zero degrees Celsius. It digs a burrow in the ground, where it builds its nest. Its strong shoulder muscles help it dig these burrows. So, that is the platypusâs tale.