If Lucy is an African American girl and Lorraine is a white American girl, you should expect that Lucy will experience menarche at about age ____ and Lorraine will experience menarche at about age ____.
A) 10; 12
B) 9; 13
C) 12; 11
D) 12; 12½

Question

Quizplus · Accepted Answer

The average age of menarche in the U. S. today is 12 ½ for white girls. African American and Hispanic girls reach menarche 3 to 6 months earlier, on average.

If Lucy Is an African American Girl and Lorraine Is