DIFFERENCE BETWEEN POPULATION AND SAMPLE.pptx

statistics

1. DIFFERENCE BETWEEN POPULATION AND SAMPLE STATISTICS

2. Study the following examples. Identify whether the person involved in each situation used sample or population.

3. 1. When a housewife buys a cavan rice, she examines only a handful of rice from the cavan to find out whether it is of good quality or not.

4. 2. When a doctor examines a patient’s blood, he or she extracts only a few cubic centimeters of blood to find out what causes the patient’s illness.

5. 3. When a cook wants to know the taste of the food he or she is preparing, he or she samples a spoonful of the food.

6. 4. When a teacher wants to know the common height of grade 7 students in Rebokon AVHS, he or she gets only a sample of 75 grade 7 students.

7. 5. When a researcher wants to know the IQ of the students in the science high schools, he or she gets sample of 50 grade 7 t 10 students from each of the science high schools in Zamboanga del Sur.

8. The handful of rice, a few cubic centimeters of blood, a spoonful of food, 75 grade 7 students, and 50 grade 7 students are called samples . The cavan of rice, the patients blood, the food, the grade 7 students, and the students in science high schools in Zamboanga del Sur, from which samples are taken are called population .

9. Population, as used in statistics, refers to a set of people, objects, measurements, or happenings that belong to a defined group. Sample is any subset of elements drawn by some appropriate method from a defined population.

10. Test Yourself Given are samples taken from a population. Describe each of these possible populations. a senior high student with a part-time job in a school scores in math on a teacher-made test 500 people in a city who watch a soap opera on TV Cooking oil preferred by 200 housewives in Manila The number of absences made by the male students in a school year

11. Describe the population. Give an appropriate sample and supply the data needed to answer the following questions. 6. What is the common size of shoes worn by the girls in your class? 7. What is the common height of students in your class? 8. Which is the most difficult subject in your class? 9. Who among the young filipino actors and actresses is the most-admired by teenagers? 10. Who is the popular students in your campus?