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.
red bone marrows produce the red blood cells while yellow bone marrows stores fat which the body consumes as a last resort in cases of extreme starvation. It also turns into r â¦ ed marrow in emergencies such as blood loss or anemia.Miraculously, this process can happen in just a few hours.ed bone marrow produces all blood cells, except lymphocytes which are produced in the marrow and reach maturity in the generative lymphatic tissues, such as the thymus gland or bone marrow. 1 person found this useful.