How many students took AI?

From the passage: In the following, a year corresponds to 1st of January of that year. A...

How many of the males who were being tracked and who were between 20 and 30 years of age in 1980 died in the period 2000 to 2010? [Figure: see page 10 of source PDF]

From the passage: There are only four neighbourhoods in a city - Levmisto, Tyhrmisto, Pe...

On how many days did Levmisto and Tyhrmisto have the same number of new cases?

From the passage: In the following, a year corresponds to 1st of January of that year. A...

How many individuals who were being tracked and who were less than 30 years of age in 1980 survived until 2020? [Figure: see page 10 of source PDF]

From the passage: In the following, a year corresponds to 1st of January of that year. A...

How many people who were being tracked and who were between 30 and 40 years of age in 1980 survived until 2010? [Figure: see page 10 of source PDF]

From the passage: In the following, a year corresponds to 1st of January of that year. A...

In 2000, what was the ratio of the number of dead males to dead females among those being tracked? [Figure: see page 10 of source PDF]

From the passage: There are only four neighbourhoods in a city - Levmisto, Tyhrmisto, Pe...

Which of the two statements below is/are necessarily false? Statement A: There were 2 new cases in Tyhrmisto on Day 3. Statement B: There were no new cases in Pesmisto on Day 2.

From the passage: There are only four neighbourhoods in a city - Levmisto, Tyhrmisto, Pe...

On which day(s) did Pesmisto not have any new case?

From the passage: There are only four neighbourhoods in a city - Levmisto, Tyhrmisto, Pe...

What BEST can be concluded about the number of new cases in Levmisto on Day 3?