A. DETERMINE WHETHER EACH SITUATION WILL INVOLVE THE USE OF DESCRIPTIVE OR INFERENTIAL STATISTICS.

1. AN INSTRUCTOR RANKS HIS STUDENTS ACCORDING TO THEIR AVERAGE GRADES.

2. THE MANAGER OF A DEPARTMENT STORE RECORDS THE NUMBER OF BUYING CUSTOMERS DAILY FOR 5 CONSECUTIVE DAYS AND THEN ESTIMATES THE NUMBER OF BUYING CUSTOMERS FOR THE FOLLOWING WEEKS.

3. A BASKETBALL FAN COMPUTES FOR THE SHOOTING AVERAGES OF HIS FAVORITE PLAYERS DURING THE LAST NBA SEASON.

4. A MATH INSTRUCTOR EMPLOYS ONE TEACHING METHOD TO ONE CLASS AND ANOTHER TEACHING METHOD TO ANOTHER CLASS. HE THEN GIVES THE SAME EXAMINATION TO THE TWO CLASSES AND USES THE RESULTS TO DETERMINE WHICH METHOD IS MORE EFFECTIVE.

5. A MARKET RESEARCHER OF A MANUFACTURING COMPANY CONTRUCTS A GRAPH SHOWING THE FLUCTUATIONS IN SALES FOR MAJOR PRODUCT LINE DURING THE LAST THREE YEARS.

6. LIZA INTERVIEWS EVERY 10TH STUDENT SHE MEETS AT THE SCHOOL CAMPUS.

7. A PROSPECTIVE EXAMINEE GATHERS DATA ON THE BATTING AVERAGES OF TWO REVIEW CENTERS INORDER TO DECIDE WHICH REVIEW CENTER TO ENROLL.

8. A NURSE EXAMINES THE EFFECT OF A CERTAIN DIET ON THE WEIGHTS OF HER PATIENTS.

9. AN INSURANCE COMPANY ANALYZES THE EFFECT OF NO-FAULT INSURANCE ON PREMIUM RATES.

10. AN ECONOMIST RECORDS POPULATION GROWTH WITHIN A PARTICULAR AREA.

B. DETERMINE WHETHER EACH OF THE FOLLOWING VARIABLES IS QUALITATIVE, DISCRETE, OR CONTINUOUS.

1. EDUCATIONAL ATTAINMENT

2. NUMBER OF CLASSES TAKEN BY A STUDENT THIS SEMESTER

3. ID NUMBER

4. YEAR IN SCHOOL (FRESHMAN, SOPHOMORE, ETC.)

5. IQ SCORE

6. HEIGHT OF A BUILDING

7. NUMBER OF YEARS IN SCHOOL

8. BLOOD TYPE

9. RANK OF TEACHERS

10. SPEED OF CARS

11. PLACE OF RESIDENCE

12. WEIGHT OF PACKAGE

13. TIME REQUIRED TO REPAIR A TV SET

14. BIRTH ORDER OF CHILDREN IN A FAMILY

15. POINTS SCORED BY BASKETBALL PLAYERS

C. DETERMINE WHETHER EACH OF THE FOLLOWING VARIABLES IS NOMINAL, ORDINAL, INTERVAL OR RATIO.

1. EDUCATIONAL ATTAINMENT

2. NUMBER OF CLASSES TAKEN BY A STUDENT THIS SEMESTER

3. ID NUMBER

4. YEAR IN SCHOOL (FRESHMAN, SOPHOMORE, ETC.)

5. IQ SCORE

6. HEIGHT OF A BUILDING

7. NUMBER OF YEARS IN SCHOOL

8. BLOOD TYPE

9. RANK OF TEACHERS

10. SPEED OF CARS

11. PLACE OF RESIDENCE

12. WEIGHT OF PACKAGE

13. TIME REQUIRED TO REPAIR A TV SET

14. BIRTH ORDER OF CHILDREN IN A FAMILY

15. POINTS SCORED BY BASKETBALL PLAYERS

16. GRADES IN MATH 30N

17. LENGTH OF COMMUTE TO SCHOOL (DISTANCE)

18. PHISIX INDEX (PHIL. STOCK INDEX)

19. NUMBER OF UNEMPLOYED FOR QUARTER 1

20. BODY TEMPERATURE

D. DATA VISUALIZATION

1.A list of 125 countries and their GDPs is contained in the file GDPlist, the continents on which they are located, and their respective GDP in U.S. dollars.

a. sort the countries in GDPlist from largest to smallest GDP. What are the top ten countries according to GDP?

b. Filter the countries to display only the countries located in Africa. What are the top five countries located in Africa according to GDP?

c. What are the top five countries by GDP that are located in Europe?