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:
Poop is black... The color could signal some sort of internal bleeding high in your GI tract, says Charles Austin, health educator, fitness coach, and author of The Toilet Book. According to Austin, the blood is darker than the usual red hue because it has been processed and moved through the digestive system along with the rest of your food.