The 2011 National Health Interview Survey by the National Centerfor Health Statistics (NCHS) provides weight categorization foradults 1818 years and older based on their body mass index.
The same NCHS report breaks down the sampled individuals by agegroup. The percentages of obese individuals in the 2011 survey foreach age group are provided in the table.
| Age group | Percent who are obese |
|---|
| 1818 to 4444 | 26.226.2 |
| 4545 to 6464 | 32.232.2 |
| 6565 to 7474 | 31.631.6 |
| 7575 and over | 19.519.5 |
What do you conclude about the weight problem in the UnitedStates?
A: Only adults in the age group 4545 to 6464 appear to haveobese individuals.
B: All age groups have a large rate of obesity. Adults 1818 to4444 and 6565 to 7474 have the highest percentage of obeseindividuals.
C: All age groups have a relatively small rate of obesity. Theweight problem in the United States appears to have beenexaggerated.
D: All age groups have a large rate of obesity. Adults 4545 to6464 and 6565 to 7474 have the highest percentage of obeseindividuals.
(b) Could you make a single pie chart for these data?
A: Yes, because the percentages in the four age groups do notadd up to 100%100% .
B: No, because the percentages in the four age groups add up to100%100% .
C: No, because the percentages in the four age groups do not addup to 100%100% .
D: Yes, because the percentages in the four age groups add up to100%100% .
