Chapter 1 Data Collection

Question 1

SECONDARY DATA

Answer 1

DATA THAT HAS ALREADY BEEN COLLECTED.

INTERNET, MAGAZINE NEWSPAPERS

Question 2

PRIMARY DATA

Answer 2

DATA COLLECT BY YOURSELF. YOU CAN ASK PEOPLE QUESTIONS OR CARRY OUT AN EXPERIMENT

Question 3

QUALITATIVE

Answer 3

DESCRIBED IN WORDS ONLY AND USUALLY ORGANISED IN TO CATEGORIES

Question 4

QUANTITATIVE

Answer 4

NUMERICAL VALUES i.e shoe sizes, temperature.

Question 5

HYPOTHESIS

Answer 5

A STATEMENT THAT HELPS TO ANSWER A QUESTION. IT MUST GIVE AN ANSWER WHICH IS TRUE OR FALSE AND MUST BE MEASURABLE

Question 6

DISCRETE

Answer 6

CAN ONLY HAVE CERTAIN VALUES, USUALLY WHOLE NUMBERS OR FRACTIONS

Question 7

CONTINUOUS

Answer 7

CAN TAKE ANY VALUE IN A RANGE AND CAN BE MEASURED

Question 8

GROUPED DATA

Answer 8

DATA GROUPED TOGETHER I.e frequency table.

Question 9

CLASS INTERVALS

Answer 9

A RANGE OF GROUPED NUMBERS I.e 1-5, 6-10

Question 10

CLASS INTERVALS FOR CONTINUOUS DATA

Answer 10

USE INEQUALITIES

Question 11

WHY LEARN TWO-WAY TABLES?

Answer 11

TO RECORD TWO SETS OF DATA IN A CLEAR WAY

Question 12

TO FIND OUT INFORMATION

Answer 12

SURVEY

Question 13

HOW TO COLLECT PRIMARY DATA

Answer 13

USE A QUESTIONNAIRE

Question 14

HOW SHOULD A QUESTION BE RESPONDED TO?

Answer 14

YES OR NO

Question 15

LEADING QUESTION

Answer 15

ENCOURAGES TO GIVE A PARTICULAR ANSWER

Question 16

CENSUS

Answer 16

GATHERS INFORMATION FROM ALL POSSIBLE SOURCES

Question 17

POPULATION

Answer 17

THE TOTAL NUMBER OF PEOPLE YOU COULD BE INVESTIGATING

Question 18

SAMPLE

Answer 18

THE GROUP OF PEOPLE ASKED

Question 19

REPRESENTATIVE

Answer 19

A SAMPLE THAT GIVES A FAIR AND BALANCED RANGE OF PEOPLES OPINIONS

Question 20

RANDOM

Answer 20

GIVES POPULATION EQUAL CHANCE OF BEING SELECTED

Question 21

BIASED

Answer 21

A SAMPLE THAT IS NOT REPRESENTATIVE OF THE POPULATION

Question 22

STRATIFIED

Answer 22

DIVIDES POPULATION IN TO GROUPS THEN TAKES A RANDOM SAMPLE FROM EACH GROUP.

Question 23

SAMPLING FRACTION

Answer 23

NUMBER TAKEN FROM STRATIFIED SAMPLE GROUPS. IS THE SAME FRACTION OF THE GROUO AS THE SAMPLE SIZE IS OF THE POPULATION.

Question 24

HOW TO CALCULATE STRATIFIED SAMPLE SIZE

Answer 24

DEFINE SAMPLE SIZE, FIND FRACTION, USE DENOMINATOR TO DIVIDE NUMBER, NUMBER GIVEN PER GROUP REQUIRED.