Category: STATISTICS

WHAT IS DISPERSION | MEASURES OF DISPERSION

WHAT IS DISPERSION | MEASURES OF DISPERSION

What is meant by Dispersion? The extent to which individual observations spread out from the central value is called dispersion. There are various measures which are used to express the degree of variation quantitatively. These measures are called measures of variation. Let’s discuss in detail measures of dispersion:- MEASURES OF DISPERSION There are two kinds…

By Free Online Notes January 1, 2018 Off

WHAT IS DATA COLLECTION | METHODS OF DATA COLLECTION

WHAT IS DATA COLLECTION | METHODS OF DATA COLLECTION

What is Data Collection? We know that Data Collection is an important element in Survey method. data are collected in various ways.Different methods can be adopted for the data collection e.g. questionnaire method, interview method including personal interviews and telephone interview. Mail survey method is also utilized. Let’s discuss in detail various ways of data collection;-…

By Free Online Notes December 29, 2017 Off

WHAT IS QUESTIONNAIRE | TOOL OF SURVEY

WHAT IS QUESTIONNAIRE | TOOL OF SURVEY

What is questionnaire? To collect information about the problem under study different can be utilized. It can be the questionnaire or any other prescribed test to scale. The main task is to translate the research question into an interview or other instrument constructed for the survey. Selection of tool is determined according to the nature…

By Free Online Notes December 29, 2017 Off

POPULATION AND SAMPLING | TYPES OF SAMPLING

POPULATION AND SAMPLING | TYPES OF SAMPLING

What is Sampling? A most critical issue in the survey method is the identification of subjects to whom the instrument will be administered or questions will be asked. Those people are typically called a sample, which means is known a group as their subjects drawn from some larger group. This larger group population that includes…

By Free Online Notes December 29, 2017 Off

WHAT IS STATISTICAL | IMPORTANCE OF STATISTICAL

WHAT IS STATISTICAL  | IMPORTANCE OF STATISTICAL

What is Statistical ? The word statistics is derived from Latin word status and Italian word statistic, while in 1749, Gottfried Achen wall used the German word Statistic, All these words stand for political State.   It is used the word that stands for political knowledge regarding civilization, industry, and policies of the government. so…

By Free Online Notes December 23, 2017 Off