Consider the normal curve in the figure to the right, which gives relative frequencies in a distribution of men's heights. The distribution has a mean of 69.2 inches and a standard deviation of 2.7 inches.
a. What is the total area under the curve?
b. Estimate the relative frequency of values less than 67.
c. Estimate the relative frequency of values greater then 67.
d. Estimate the relative frequency of values between 67 and 69.
e. Estimate the relative frequency of values greater than 69.