Question: Newborn Elephant Weights. new born elephant calves usually weigh between 200 and 250 pounds until october 2006, that is. an asian elephant at the houston texas zoo gave birth to a male calf weighing in at a whopping 384 pounds! mack(like the truck) is believed to believed to be the heaviest elephant calf ever born at a facility accredited by the association of zoos and aquariums. If, indeed, the mean weight for new born elephant calves is 225 pounds with a standard deviation of 45 pounds, what is the probability of a newborn weighing at least 384 pounds? assume that the weights of newborn elephants are normally distributed.