The lengths of human pregnancies are approximately bell-shap…

The lengths of human pregnancies are approximately bell-shaped with a mean of 266 days and a standard deviation of 16 days. On a separate sheet of paper draw the bell-curve that represents this information and the percentages from the Empirical Rule.  Use your curve to answer the following questions. 95% of all pregnancies last between___________and ____________days.  [answer2] What percentage of pregnancies last 234 to 314 days?  [answer5]