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.
Animal Unique | Platypus | The platypus is a semi-aquatic mammal endemic to eastern Australia, including Tasmania.Together with the four species of Echidna, is one of the five extant species of monotremes, the only mammals that lay eggs instead of the birth of live pups.nimal Unique | Platypus | The platypus is a semi-aquatic mammal endemic to eastern Australia, including Tasmania.