If a fund's returns follow a normal distribution, then approximately 68% of the time they will fall within one standard deviation of the mean return for the fund, and 95% of the time within two standard deviations.
Mammals are a particular class of animal. What makes an animal a mammal are several things. First, they must have glands that give milk.This is to feed their babies. Second, they are warm-blooded.Third, all mammals have fur or hair. Humans are mammals and so are dogs, whales, elephants, and horses.hat makes an animal a mammal are several things. First, they must have glands that give milk. This is to feed their babies. Second, they are warm-blooded. Third, all mammals have fur or hair. Humans are mammals and so are dogs, whales, elephants, and horses.
Whales are mammals because they give birth to live young, they have fur (although it is very sparse on their body), they have lungs and breath air and they provide milk for their young. You have a lot of interesting questions about marine mammals. Dolphins and other whales are all mammals called cetaceans.Mammals, and only mammals, have fur or hair and they feed their babies milk. Whales all feed their babies milk. You may be thinking that whales dont have any fur.ou have a lot of interesting questions about marine mammals. Dolphins and other whales are all mammals called cetaceans. Mammals, and only mammals, have fur or hair and they feed their babies milk. Whales all feed their babies milk. You may be thinking that whales dont have any fur.