From the document National Vital Statistics Reports, a publication of the National Center for Health Statistics, we obtained the following frequency distribution for the ages of women who became mothers during one year.

a. Obtain a relative-frequency histogram of these age data.
b. Based on your histogram, do you think that the ages of women who became mothers that year are approximately normally distributed? Explain your answer.

Age (yr) Frequency 10-under 15 15-under 20 425,493 20-under 25 1022,106 25-under 30 1060,391 30-under 35 951.219 35-under 40 453,927 40-under 45 45-under 50 7.315 95.788