Basic Mathematics for College Students

626 Chapter 7 Summary and Review

In a workplace survey, employed adults were asked if they

would date a co-worker. The results of the survey are shown

below. Use the double-bar graph to answer the following

questions.

7. What percent of the women said they would not
   date a co-worker?


8. Did more men or women say that they would date a
   co-worker? What percent more?


9. When asked, were more men or more women
   unsure if they would date a co-worker?


10. Which of the three responses to the survey was given
    by approximately the same percent of men and
    women?

Refer to the pictograph below to answer the following questions.

11. How many animals are there at the San Diego
    Zoo?


12. Which of the zoos listed has the most animals? How
    many?


13. How many animals would have to be added to the
    Phoenix Zoo for it to have the same number as the
    San Diego Zoo?


14. Find the total number of animals in all three
    zoos.

San Diego Zoo

Columbus Zoo, Ohio

Phoenix Zoo = 1,000 animals

Source: USA Travel Guide

America’s Best Zoos

Number of Animals

Source: Spherion Workplace Survey

Men

Women

10%

Yes No

43%

28% 31%29% 26%

43%

Not sure

20%

30%

40%

50%

60%

Responses to the Survey:

Would you date a co-worker?

Refer to the circle graph below to answer the following

questions.

15. What element makes up the largest percent of the
    body weight of a human?


16. Elements other than oxygen, carbon, hydrogen, and
    nitrogenaccount for what percent of the weight of a
    human body?


17. Hydrogen accounts for how much of the body
    weight of a 135-pound woman?


18. Oxygen and carbon account for how much of the
    body weight of a 200-pound man?

Refer to the line graph on the next page to answer the following

questions.

19. How many eggs were produced in Nebraska in 2001?


20. How many eggs were produced in North Carolina
    in 2008?


21. In what year was the egg production of Nebraska
    equal to that of North Carolina? How many eggs?


22. What was the total egg production of Nebraska
    and North Carolina in 2005?


23. Between what two years did the egg production in
    North Carolina increase dramatically?


24. Between what two years did the egg production in
    Nebraska decrease dramatically?


25. How many more eggs did North Carolina produce
    in 2008 compared to Nebraska?

65%

Oxygen

Source: General Chemistry Online

18%

Carbon

10%

Hydrogen

3%

Nitrogen Other elements

Elements in the Human Body

(by weight)