Newborn Rhinoceros Weights. Newborn rhinoceros's calves usually weigh between 300
and 350 pounds. A rhinoceros at a local Zoo gave birth to a female calf weighing in at a
whopping 477 pounds! It is believed to be the heaviest rhinoceros calf ever born at a facility
accredited by the Association of Zoos and Aquariums. If, indeed, the mean weight for
newborn rhinoceros's calves is 321 pounds with a standard deviation of 51 pounds, what is
the probability of a newborn weighing at least 477 pounds? Assume that the weights of
newborn rhinoceros are normally distributed.