The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems, indicate the percentage or score called for by the problem and select the appropriate distribution curve (from below) that relates to the problem.

I have a book in front of me, but I need to be walked through these. I don't know why these questions are not clicking, even though I aced my previous statistics class.

400 600 800 1000 1200 1400 1600 Curve A400 600 800 1000 1200 1400 1600 Curve B400 600 800 1000 1200 1400 1600 Curve CT 400 600 800 1000 1200 1400 1600 Curve D400 600 800 1000 1200 1400 1600 Curve E