Please. I need someone's help po.
Answer the following
1. Find the area under the standard normal curve for the following z-scores
and draw and shade the corresponding area on the curve.
a. between z = -1.5 and z = 2.12
b. to the right of z = 2.33
c. to the left of z = 0.64
S&S

2. A survey of 1000 women ages 20 to 30 found that their heights were
normally distributed, with a mean of 65 in, and a standard deviation of
2.5 in. (a) How many of the women have a height that is within 1
standard deviation of the mean? (b) How many of the women have a
height that is between 60 in, and 70 in?

3. The cholesterol levels of a group of young women at a university are
normally distributed, with a mean of 185 and a standard deviation of 39.
What percent of the young women have a cholesterol level
a. greater than 219?
b. between 190 and 225?​