Average is the number that is found by dividing the sum of data by the number of items in the data set.verage is the number that is found by dividing the sum of data by the number of items in the data set.
Blood is always red, actually. Veins look blue because light has to penetrate the skin to illuminate them, blue and red light (being of different wavelengths) penetrate with different degrees of success. What makes it back to your eye is the blue light. Meanwhile, here's what happens to the blood in your body:
In a nutshell, below are some few facts about the amount of blood in human body: 1. The amount of blood in a human body depends on age, sex, overall health and even where people reside. 2. Blood makes up roughly 7 percent of the weight of a human body. 3. Water makes up 90 per cent of blood plasma. Blood plasma also contains various electrolytes, glucose, gases, nutrients, proteins, and hormones.