Archive

classification of modelling in operations research, quantitative techniques of operation research models, characteristics or features of a good model in operation research, approaches and phases of operation research in decision making
Mathpedia

What is Model in Operation Research?

Lata Agarwal

What is Model in Operation Research – A model in the sense used in OR is defined as a representation of an actual object or situation. It shows the relationships… […]

relationship between the manager and OR specialist
Mathpedia

Relationship between the Manager and O.R. Specialist

Lata Agarwal

The role of the O.R. (Operation Research) specialist is to help the manager make better decisions. The following figure explains… […]

classification of modelling in operations research, quantitative techniques of operation research models, characteristics or features of a good model in operation research, approaches and phases of operation research in decision making
Mathpedia

What kind of problem we can solve from Operation research?

Lata Agarwal

Operation research does not deal with the everyday problems such as output by the one worker or machine capacity; instead it is… […]

classification of modelling in operations research, quantitative techniques of operation research models, characteristics or features of a good model in operation research, approaches and phases of operation research in decision making
Mathpedia

Difficulties in Operation Research

Lata Agarwal

Some difficulties in Operation Research are as follows, Problem Formulation, Data Collection, Study based on… […]

methods and sources of data collection, sources and methods of primary secondary and internal data collection
Business Statistics & Statistics

Sources and Methods of Primary, Secondary & Internal Data Collection

Lata Agarwal

Primary data is a type of data that researchers collect directly from original sources through interviews, surveys, experiments, etc. The methods and sources to collect primary data are as follows: […]

qualities or characteristics of a good questionnaire in research, important points to think while preparing the questionnaire
Business Statistics & Statistics

Questionnaire: Introduction, Definition & Objective or Purpose

Lata Agarwal

A questionnaire, in other words, is a research instrument or tool that consists of a series of questions. The Statistical Society of London invented the questionnaire in 1838, and it has been in use ever since. […]

types and sources of data collection, primary data, secondary data, internal data
Business Statistics & Statistics

Internal Data: Definition and Sources of Internal Data Collection

Lata Agarwal

Internal data that originates in the process of keeping records, such as employee earnings from a payroll, sales numbers from a sales journal, and the amount of raw materials, can be used in statistical analysis of various business problems. […]

types and sources of data collection, primary data, secondary data, internal data
Business Statistics & Statistics

Secondary Data: Definition and Sources of Secondary Data Collection

Lata Agarwal

Secondary data is research data that has already been obtained and is available to researchers. The term is in contrast to primary data, which is data acquired directly from its source. […]

types and sources of data collection, primary data, secondary data, internal data
Business Statistics & Statistics

Primary Data: Definition and Sources of Primary Data Collection

Lata Agarwal

Primary data is generally collected directly from the source from which the data originated, and is considered the best type of data in research and study. […]

differences between primary data and secondary data
Business Statistics & Statistics

Difference between Primary Data and Secondary Data

Lata Agarwal

Primary data is the first-hand data collected by the researcher/user himself. Secondary data have already been collected by some other person in the past. […]