Sampling Flashcards
A sequence of observation, made on a set of objects included in the sample drawn from population
Statistical data
Data which have been arranged in a systematic order.
Ungrouped data
Data presented in the form of frequency distribution
Grouped data
The data may be collected for the whole population or for a sample only.
Collection of data
come from vital statistics registries
that track all births and deaths as well as certain changes in legal status such as marriage, divorce, and migration
Direct method
required in countries and periods where full data are not available
Indirect method
first hand information collected, compiled and published by organization for some purpose
Primary data
second hand information which are already collected by some one (organization) for some purpose and are available for the present study.
Secondary data
The researcher conducts the survey him/herself and collects data from it. The data collected in this way is usually accurate and reliable. This method of collecting data is only applicable in case of small research projects.
Personal investigation
Trained investigators are employed to collect the data. These investigators contact the individuals and fill in questionnaire after asking the required information. Most of the organizing implied this method.
Through investigation
The researchers get the data from local representation or agents that are based upon their own experience. This method is quick but gives only rough estimate.
Collection through questionnare
The researchers get information through telephone this method is quick and give accurate information.
Through telephone
e.g. State Bank, Railway Board, Central Cotton Committee, Boards of Economic Enquiry etc…
● Publication of Trade Associations, Chambers of Commerce etc…
● Technical and Trade Journals and Newspapers.
Semi official
Various publication of central, state and govt.
– Various publication of foreign government
– Journals
– Books magazine and newspaper
Published
Diaries
Unpublished biographies Private organization
Unpublished
means the examination of collected data to discover any error and mistake before presenting it. It has to be decided before hand what degree of accuracy is wanted and what extent of errors can be tolerated in the inquiry. The editing of secondary data is simpler than that of primary data.
Editing of data
Is the statistical study of human population
Demography
the annual number of live births per 1,000 people.
Crude birth rate
the annual number of live births per 1,000 women of childbearing age (often taken to be from 15 to 49 years old, but sometimes from 15 to 44).
General fertility rate
the annual number of live births per 1,000 women in particular age groups (usually age 15-19, 20-24 etc.)
Age specific fertility rates
the annual number of deaths of children less than 1 year old per 1,000 live births.
Infant mortality rate
the number of years which an individual at a given age could expect to live at present mortality levels.
Expectation of life
the number of live births per woman completing her reproductive life, if her childbearing at each age reflected current age-specific fertility rates.
Total fertility rate
the average number of children a woman must have in order to replace herself with a daughter in the next generation.
Replacement level fertility