An analogous formula applies to the case of a continuous probability distribution. Not every probability distribution has a defined mean; see the Cauchy distribution for an example. Moreover, for some distributions the mean is infinite: for example, when the probability of the value is for n = 1, 2, 3, ....
Red blood cell (RBC) production (erythropoiesis) takes place in the bone marrow under the control of the hormone erythropoietin (EPO). Juxtaglomerular cells in the kidney produce EPO in response to decreased O 2 delivery (as in anemia and hypoxia) and increased levels of androgens.
Bone Marrow Transplant Unit. Bone marrow: A spongy material found in the center of the bones that contains stem cells that manufacture blood cells. The 3 major types of blood cells that bone marrow stem cells produce are red blood cells (RBC), white blood cells (WBC) and platelets. Each has an important function.one Marrow Transplant Unit. Bone marrow: A spongy material found in the center of the bones that contains stem cells that manufacture blood cells. The 3 major types of blood cells that bone marrow stem cells produce are red blood cells (RBC), white blood cells (WBC) and platelets. Each has an important function.