The table a below presents death and population data for Denver and Boulder County in 2010

	Boulder County	Denver County
Age (yrs)	Mid-year Pop	Deaths	Rate per 100,000	Mid-year Pop	Deaths	Rate per 100,000
25-44	80,368	73	90.83	212,593	260	122.30
45-64	80,094	260	324.62	134,219	953	710.03
65	29,521	1,149	3,892.14	65,132	2,872	4,409.51

Table b presents population data for the state of Colorado in 2010

	Colorado
Age (yrs)	Mid-year Pop
25-44	1,425,922
45-64	1,340,342
65	549,625

Question 21

Based on tables a and b above, what is the age-adjusted mortality rate for Boulder County in 2010 using Colorado as the standard population? (Report your answer per 100,000 person years rounded to the 10^th decimal place.)

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Question 22

Based on tables a and b above, what is the age-adjusted mortality rate for Denver County in 2010 using Colorado as the standard population? (Report your answer per 100,000 person years rounded to the 10^th decimal place.)

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Question 23

Which of the following would be accurate conclusions about the mortality rates in Boulder and Denver based on your answers to Questions 21 and 22 and the data in tables 5a and 5b?

A) The age-adjusted mortality rate among adults 25 in Denver County is 31% higher than that of Boulder County.

B) The age-specific mortality rate of each age group (25-44, 45-64, 65) is higher in Denver than in Boulder.

C) You cannot make direct comparisons between Denver and Boulder because their age distribution is not the same

D)There is a higher proportion of "young adults" aged 25-44 in Denver's adult population compared to Boulder

E) Options A, B and C are correct

F) Options A, B and D are correct