题目内容

The following headlines have appeared in many news agencies since the publishing of a study on the Prevalence of Childhood and Adult Obesity in the United States, 2011-2012 in the February 2014 issues of the Journal of the American Medical Association (JAMA). “Obesity Rate for Young Children Plummets 43% in a Decade” New York Times“Obesity in young American children plummets” Los Angeles Times“Obesity rate drops 43 percent in young US children” ZeeNewsWhat could a 43% drop (or decrease) mentioned in the media mean? Please select all the hypothetical scenarios that apply.

A. 65% of people are obese in 1990 and 22% are obese in 2010.
B. 85% of people are obese in 1990 and 22% are obese in 2010.
C. 100% of people are obese in 1990 and 57% are obese in 2010.
D. 28% of people are obese in 1990 and 16% of are obese in 2010.

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Calculate the relative percent increase in obesity for 2-19 years of age from 1971-1974 to 2010-2012.(Enter the numbers only) _% ____

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Calculate the absolute percent change in obesity for youth 2-19 years of age from 1971-1974 to 2010-2012.(Enter the numbers only) _% ____

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Suppose an article is published using the above pie chart to support the statement:"Approximately 20% of Canadians aged 20-34 years old are overweight or obese."Why might this interpretation be inaccurate?

A. The author is misinterpreting the data by applying the percentage to the total age group population as opposed to the total obese/overweight population.
B. The author has mistakenly provided the values for the 18 to 19 year old age range.
C. The author is misinterpreting the data by substituting absolute numbers for relative numbers.
D. The author is misinterpreting the data because the ranges for the age categories are not standardized.

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Which of the following statements is the most reasonable explanation as to why 18-19 year old Canadians make up a small proportion of the overweight/obese population compared to other age categories?

A. The 18-19 years olds were more likely to underestimate their weight and overestimate their height resulting in lower BMI values.
B. 18-19 year old Canadians are more active therefore they are unlikely to fall within the overweight/obese BMI categories.
C. This age category represents a range of two years as opposed to all the other categories which are a range of at least ten years.

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A. 65% of people are obese in 1990 and 22% are obese in 2010. B. 85% of people are obese in 1990 and 22% are obese in 2010. C. 100% of people are obese in 1990 and 57% are obese in 2010. D. 28% of people are obese in 1990 and 16% of are obese in 2010.

Calculate the relative percent increase in obesity for 2-19 years of age from 1971-1974 to 2010-2012.(Enter the numbers only) ___% ______

Calculate the absolute percent change in obesity for youth 2-19 years of age from 1971-1974 to 2010-2012.(Enter the numbers only) ___% ______

Suppose an article is published using the above pie chart to support the statement:"Approximately 20% of Canadians aged 20-34 years old are overweight or obese."Why might this interpretation be inaccurate?

Which of the following statements is the most reasonable explanation as to why 18-19 year old Canadians make up a small proportion of the overweight/obese population compared to other age categories?

A. 65% of people are obese in 1990 and 22% are obese in 2010.
B. 85% of people are obese in 1990 and 22% are obese in 2010.
C. 100% of people are obese in 1990 and 57% are obese in 2010.
D. 28% of people are obese in 1990 and 16% of are obese in 2010.

Calculate the relative percent increase in obesity for 2-19 years of age from 1971-1974 to 2010-2012.(Enter the numbers only) _% ____

Calculate the absolute percent change in obesity for youth 2-19 years of age from 1971-1974 to 2010-2012.(Enter the numbers only) _% ____