statistics

Newborn elephant calves usuallys= weigh between 200 and 250 pounds- until October 2006, that is. An Asian elephant at Houston (texas) Zoo gave birth to a male calf weighing in at a whopping 384 pounds! Mack (like the truck) is believed to be the heaviest elephant calf ever born at a facility accredited by the association of Zoo's and Aquariums. If, indeed the mean weight for newborn elephants calves is 225 pounds with a standard deviation of45 pounds, what is the probablility of a new born weighing atleast 384 pounds? Assume that the weights of newborn elephants are normally distributed.