For the data in Exercises 13–18:

  1. Find the population size .
  2. Calculate the population mean .

Question 3.16

16. The National Center for Education Statistics sponsors the Trends in International Mathematics and Science Study (TIMSS). The table contains the mean science scores for the eighth-grade science test for the populations of all Asian-Pacific countries that took the exam.

Country Science score Country Science score
Singapore 578 Australia 527
Taiwan 571 New Zealand 520
South Korea 558 Malaysia 510
Hong Kong 556 Indonesia 420
Japan 552 Philippines 377