posted by collette .
. The average age at which a woman gets married in the U.S. is µ = 27 with a standard deviation of σ = 5.5. Use this information to answer the following questions. Show Your Work!
A. What proportion marries at age 30 or more?
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.