Assume that women's weights are normally distributed with a mean given by mean=143 lb and a standard deviation given by 29 lb. If 3 women are randomly selected, find the probability that they have a...

 Assume that women's weights are normally distributed with a mean given by mean=143 lb and a standard deviation given by 29 lb.

If 3 women are randomly selected, find the probability that they have a mean weight below 113

If 85 women are randomly selected, find the probability that they have a mean weight below 113