Homework

Mean and Variance Name: Institution: Humpback whales are mammals in the Family- Balaenopteridae, Genus- Megaptera and the Species- novaeangliae. The whales are part of the population of baleen whales and belong to the larger rorqual whales. They are among the largest species of aquatic species in the ocean. They live mostly close to the coast lines feeding on smaller fish and planktons. http://animals.nationalgeographic.com/animals/mammals/humpback-whale/ /subjects/whales/species/Humpbackwhale.shtml /pr/species/mammals/cetaceans/humpbackwhale.htm In the deep sea vents, the ecosystems at the bottom of the se are characteristic of their distance from the surface. In this ecosystem there is little or no lighting, the water at the depth also experiences extreme temperatures and toxicity. The living organisms within these ecosystems have also developed special means adaptations to survive in these harsh conditions. Natural experiments as the name suggests are carried out in the naturalsettings, this means that they bound to have a more profound realism in their results. This due to the fact that the natural experiments are faced with natural conditions. In the laboratory setting the conditions are controlled and tend to be skewed to a certain set of objectives. (A). Data was collected along every 200 meters instances on five observations within a kilometer. Mean 2+6+5+8+14=35/5= 7 2+3+6+7+2=20/5 =4 5+7+2+7+9=30/5=6 1+5+2+4+3=15/5=3 3+6+6+2+8=25/5=5 Variance (-22)+ (-12) + (-22)+(12)+(72) = 20 (-22)+(-12)+(22)+(32)+(-22)=5.5 (-12)+(12)+(-42)+(12)+(32) =7 (-22)+(22)+(-12)+(12)+(02)=2.5 (-22)+(12)+(12)+(32)+(-32)=6 (B). Sample A from the first observation has the highest variance compared to sample D which has the least var...