The data arranged according to location or geographical considerations form a spatial series. For example, if the weight of 5 students in a class is exactly 65 kg, then the frequency of data item 65kg is 5. Upper Limit of one class becomes the Lower Limit of the next class. When the data are classified according to geographical location or region, it is known as geographical classification. Q.- What is Meant by Variable? A planned data analysis system makes fundamental data easy to find and recover. Classification is the process of arranging things in groups or classes according to their resemblances and affinities and gives expression to the unity of attributes that may exist amongst a diversity of individuals. Q.11- Which Method Includes Both the Class Limits in the Class of a Continuous Series? Some more examples are Height, Weight, Wages, Expenditure, Imports, Production, etc. Class-11-commerce » Economics. c. To bring out points of similarity and dissimilarity among various groups. To allow a statistical method of the material gathered. NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. To consolidate the volume of data in such a way that similarities and differences can be quickly understood. Discrete Variable These are those variables that increase in jumps or in compete numbers. However, a properly constructed and validated classification such as the NS-SEC removes at least one barrier to explanation. Frequency refers to a number of times a given value appears in a distribution. Qualitative Classification This classification is according to qualities or attributes of the data. Types of Statistical Series Statistical series are of two types. Starting from the objective to characteristics of good classification, this chapter covers it all. Or. Class divisions are given, which can also be done by sampling. This arrangement of data helps users in comparison and analysis. A table, in which the frequencies and the associated values of a variable are written side by side, is known as a frequency distribution. Multi-Class Classification 4. Diagnostic and Statistical Manual of Mental Disorders (DSM) The DSM is one of these classification systems, developed in the US in 1952. (ii) Spatial Series; and Q.12- What is Meant by the Term ‘frequency’? This type of classification is made on the basis some measurable characteristics like height, weight, age, income, marks of students, etc. Upper Limit of one class is not equal to the Lower Limit of the next class. Q.1- What is Meant by Classification of Data? 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This is true for other classes as well. Example in the class 40-50 the class interval is 10 (i.e. The ICD is designed to promote international compatibility in health data collecting and reporting. (i) Time Series; Once a data-classification scheme has been designed, security standards that stipulate proper approaching practices for each division and storage criteria that determine the data’s lifecycle demands should be discussed. However, in the case of emboldening learning, information can be added as to whether a class classification was right or wrong. NACE (Nomenclature of Economic Activities) is the European statistical classification of economic activities. Here if we take length of class interval as 10 then the number of class interval will be 55/10 = 5.5 or 6 which is less than the desired number of classes. Class frequency: The number of observations corresponding to a particular class is known as the frequency of that class . Whenever we employ statistical methods for the collection, classification, presentation, analysis, and interpretation of quantitative data, we term statistics as a singular noun. Quick Search Help. Under this classification, data are classified on the basis of some attributes or qualities like honesty, beauty, intelligence, literacy, marital status etc. Answer: The stages of a statistical study are. Q.2- What is Meant by Geographical Classification? each item is given a separate value of the measurement. NACE is the “statistical classification of economic activities in the European Community”1 and is the subject of legislation at the European Union level 2 , which imposes the use of the classification uniformly within all the Member States. Open End Series An open end series is that series in. Workers' compensation exists to provide financial assistance and medical treatment to employees who are injured on the job. 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