Henry is a healthy baby boy who was just born today. Based on current projections, his chance of living to be 100 is __________.
A. highly unlikely
B. about one in 200
C. practically guaranteed
D. about 50-50
Answer: D
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The main factors that affect a population's general "youth" or "age" are __________
a. changes in the fertility rate b. the infant mortality rate c. the life expectancy of people at older ages d. All of the above e. None of the above
Which of the graphically depicted designs from your text is NOT correct?
a. R 01 x 02 b. 01 02 x c. 01 x 02 d. R 03 04
In a caste system, marriage is __________, meaning that people are allowed to marry only within their own group
a. endogamous b. exogamous c. polygamous d. homogenous
Which of the following statements about the relative weights of models and young women in the population is true?
a. Since 1920 the average weight for both models and young women has gone down thanks to an emphasis on exercise and healthy diets b. While the weight of an average young woman rose 20 pounds, the weights of models actually decreased. c. Models have always weighed slightly more than the average young woman. d. Although they were separated by 15 pounds in 1920, the weights of models and the average young woman have increasingly come more in line with one another.