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 is quite a small animal. A male platypus is 50-60 cm in length, whilst the female is smaller, averaging 40-50 cm in length. They are very lightly built creatures,â¦ with females weighing as little as 900 grams, and males 1700 grams to 2kg. Platypuses in north Queensland tend to be smaller than their southern counterparts.