Poor ?tness in adolescents and adults increases the risk of cardiovascular disease. In a study of 3110 ado- lescents and 2205 adults ( Journal of the American Medical Association, December 21, 2005), researchers found 33.6% of adolescents and 13.9% of adults were un?t; the percentage was similar in adolescent males (32.9%) and females (34.4%), but was higher in adult females (16.2%) than in adult males (11.8%).
a. Summarize this information using a comparative bar graph that shows differences between males and females within the two different age groups.
b. Comment on the interesting features of your graphical display.