Assume that weights of females who are 5'4" tall between the ages of 20 and 25 are normally distributed with a mean of 122 pounds and a standard deviation of 11 pounds.Find the probability that if one of these women is randomly selected, she will weigh:

1- Between 130 and 140 pounds

2- Less than 120 pounds

3- More than 140 pounds

4- More than 125 pounds

5- Find the 20^thpercentile of these weights.

6- Find the 90^thpercentile of these weights.

7- Find the 50^thpercentile of these weights

8- If a random sample of 25 females are selected,then write the distribution for the mean.