# Question

The following table shows the total population and the number of deaths (in thousands) due to heart attack for two age groups (in years) in Countries A and B for 2011.

a. Calculate the death rate due to heart attack per 1000 population for the 30 years and under age group for each of the two countries. Which country has the lower death rate in this age group?

b. Calculate the death rates due to heart attack for the two countries for the 31 years and over age group. Which country has the lower death rate in this age group?

c. Calculate the death rate due to heart attack for the entire population of Country A; then do the same for Country B. Which country has the lower overall death rate?

d. How can the country with lower death rate in both age groups have the higher overall death rate? (This phenomenon is known as Simpson’s paradox.)

a. Calculate the death rate due to heart attack per 1000 population for the 30 years and under age group for each of the two countries. Which country has the lower death rate in this age group?

b. Calculate the death rates due to heart attack for the two countries for the 31 years and over age group. Which country has the lower death rate in this age group?

c. Calculate the death rate due to heart attack for the entire population of Country A; then do the same for Country B. Which country has the lower overall death rate?

d. How can the country with lower death rate in both age groups have the higher overall death rate? (This phenomenon is known as Simpson’s paradox.)

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