Statistics for Economics Class 11 Notes Chapter 8 Index Numbers Index NumberAn index number is a statistical device for measuring changes in the magnitude of a group of related variables. It represents the general trend of diverging ratios from which
Read MoreStatistics for Economics Class 11 Notes Chapter 7 Correlation CorrelationIt is a statistical method or a statistical technique that measures quantitative relationship between different variables, like between price and demand.According to Croxton and Cowden, “When the relationship is of a
Read MoreStatistics for Economics Class 11 Notes Chapter 6 Measures of Dispersion Dispersion“It is the measure of the variation of the item”. According to Spiegel, ‘The degree to which numerical data tend to spread about an average value is called the
Read MoreStatistics for Economics Class 11 Notes Chapter 5 Measures of Central Tendency Central TendencyA central tendency refers to a central value or a representative value of a statistical series.According to Clark, “An average is a figure that represents the whole
Read MoreStatistics for Economics Class 11 Notes Chapter 4 Presentation of Data Textual PresentationIn textual presentation, data are a part of the text of study or a part of the description of the subject matter of study. Tabular Presentation of Data“Tabulation
Read MoreStatistics for Economics Class 11 Notes Chapter 3 Organisation of Data Organisation of DataOrganisation of data refers to the arrangement of figures in such a form that comparison of the mass of similar data may be facilitated and further analysis
Read MoreStatistics for Economics Class 11 Notes Chapter 2 Collection of Data Sources of Data There are two sources of data Types of Data There are two types of data Principal Differences between Primary and Secondary Data Statistical Methods of Data
Read MoreStatistics for Economics Class 11 Notes Chapter 1 Introduction Components of Economics There are three components of economics Statistics – A Plural Sense Statistics refers to information in terms of numbers or numerical data, such as population statistics, employment statistics
Read MoreComparative Development Experience of India with its Neighbours Class 11 Notes Chapter 10 Indian Economic Development IntroductionWith the unfolding of the globalisation process, developing countries are keen to understand the developmental processes pursued by their neighbours as they face competition
Read MoreEnvironment Sustainable Development Class 11 Notes Chapter 9 Indian Economic Development Concept of EnvironmentEnvironment may be defined as all those conditions and their effects which influence human life. It is the sum total of surrounding and the totality of the
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