The United Nations Development Programme Website Provides Comparative Data by Country

question 54

Multiple Choice

The United Nations Development Programme website provides comparative data by country on key metrics,such metrics as life expectancy over time.The chart below shows data on life expectancy over time in the United States. Which of the following statements are not true based on the scatterplot of U.S.Life Expectancy over time?

• A)The life expectancy in the U.S.is increasing over time.
• B)U.S.citizens lived fewer years in 2010 than they did in in 2008.
• C)The scatterplot shows an increasing trend in life expectancy in the U.S.
• D)Based on the scatterplot,one can assume the life expectancy in 2014 will be higher than 78 years.
• E)All of these statements are true.

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Definitions:

Linear Effects

A relationship in statistical models where the change in the outcome variable is directly proportional to the change in the predictor variables.

Best Predictor

The variable or factor most strongly associated with or capable of predicting the outcome of interest.

Calorie Content

The amount of energy in food or drink, measured in calories, that can be metabolized by the body.

Linear Effects

In modeling, the proportional change in an outcome resulting from a one-unit change in independent variables assuming all other variables are held constant.