1. The goal of a nutritional study was to compare the caloric intake of adolescents living in rural areas of the United
States with the caloric intake of adolescents living in urban areas of the United States. A random sample of
ninth-grade students from one high school in a rural area was selected. Another random sample of ninth graders
from one high school in an urban area was also selected. Each student in each sample kept records of all the food
he or she consumed in one day.
The back-to-back stemplot below displays the number of calories of food consumed per kilogram of body weight
for each student on that day.
Urban
Rural
999988 76
44310
97665
(a) Write a few sentences comparing the distribution of the daily caloric intake of ninth-grade students in the
rural high school with the distribution of the daily caloric intake of ninth-grade students in the urban high
school