# CBSE Class 11 Economics Organisation and Presentation of Data Assignment

Read and download free pdf of CBSE Class 11 Economics Organisation and Presentation of Data Assignment. Get printable school Assignments for Class 11 Economics. Class 11 students should practise questions and answers given here for Statistics For Economics Chapter 3 Organisation Of Data Economics in Class 11 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 11 Economics prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

## Assignment for Class 11 Economics Statistics For Economics Chapter 3 Organisation Of Data

Class 11 Economics students should refer to the following printable assignment in Pdf for Statistics For Economics Chapter 3 Organisation Of Data in Class 11. This test paper with questions and answers for Class 11 Economics will be very useful for exams and help you to score good marks

### Statistics For Economics Chapter 3 Organisation Of Data Class 11 Economics Assignment

* Key paints :
organisation of data refers to the systematic arrangement of figures in such a form that comparison of masses of similar data may be facilitated and further analysis may be possible.
* Classification is the grouping of related facts into different classes.

* Variable is a characteristic or a phenomenon which is capable of being measured and changes its value overtime.
* Frequency is number of times on item repeats itself in the series.
* Continuous variables are those variables that increase continuously or in fraction.
* A mass of data collected by investigator in its crude form called raw data. It is an unorganised mass of the various items.
* Both the lower limit and the upper limit of a class - interval are included in that class itself called inclusive series.
* When the class intervals are so fixed that the upper limit of one class - interval is the lower limit of the next class interval, it is called an exclusive series.
* The method of arranging data orderly in form of raws and columns is known as tabulation.

Features of a good table

* Compatible title

* Ideal size

* Stubs

* Clearification of units.

* Percenage and ratio.

* Source simple.

* Bar diagrams are those diagrams in which data are presented in the form of bars and rectangles.

* Utility / Merits of Diagrammatic Presentation.

1. Make simple to compare data

2. Attractive and eye catchers.

3. Longterm memorising effect.

4. Useful in comparative / relative study.

* Sub divided bar diagrams are those diagrams Which present simultaneously, total values and parts there in a set of a data.

* Pie or circuler diagram is a circle divided into various segment showing the percent value of a series.

* Histogram is graphical presentation of a frequency distribution of a continuous series.

* Frequency polygon is drawn by joining the mid points of the tops of rectangles in a histogram.

* Frequecy curve is obtained by joining the points of a frequecy polygon through free hand smoothed curves not by straight lines.

* Cumulative frequency curves or ogive curve is the curve which is constructed by plotting cumulative frequency data on the graph
paper in the form of a smooth curve.

1 Marks Questions

Question. What is meant by organisation of data?
Answer: Organisation of data refers to the systematic arrangement of figures in such a form that comparison of masses of similar data may be facilitated and further analysis may be possible.

Question. State the meaning of classification.
Answer: Classification is the grouping of related facts into different classes.

Question. What is meant by homogeneity of data?
Answer: The similarity of features of all the units of a class called homoginity.

Question. State the meaning of qualitative classification.
Answer: The classification according to qualities or attributes of the data called qualitative classification.

Question. Define raw data.
Answer: A mass of data in its crude form is called raw data. It is an unorganised mass of the various items.

Question. Define discrete series or frequency array.
Answer: A discrete series of frequency array is that series in which data are presented in a way that exact measurement of items are clearly shown.

Question. What is meant by exclusive series?
Answer: When the class intervals are so fixed that the upper limit of one class interval is the lower limit of the next class interval it is called an exclusive series.

Question. Write the name of the series which include all items up to its upper limit.

Question. What is meant by frequency?
Answer: Frequency is number of times an item repeats itself in the series.

Question. State the meaning of class intervals.
Answer: The class intervals are the lowest and highest values that can be included in the class.

Question. What is meant by tabulation?
Answer: The method of arranging data orderly in form of raws and columns is known as tabulation.

Question. Define caption as a part of table.
Answer: Caption is the title given to the columns of a table. It indicate information contained in the columns.

Question. What is meant by manifold table?
Answer: Manifold table shows more than three characteristics of the data.

Question. Define bar diagrams.
Answer: Bar diagrams are those diagrams in which data are presented in the form of bars and rectangles.

Question. State the meaning of sub-divided bar diagrams.
Answer: Sub divided bar diagrams are those diagrams in which more than one data are presented simultaneously, total values and parts there in a set of data.

Question. Define pie-diagram.
Answer: Pie diagram is a circle divided into various sagement showing the percent value of a series.

Question. What is meant by histogram?
Answer: Histogram is a graphical presentation of a frequency distribution of a continuous series.

Question. State the meaning of frequency curve.
Answer: Frequency curve is obtained by joining the points of a frequency polygan through freehand smoothed curves not by straight lines.

Question. Write the name of the curve which is formed by joining mid point of the top of all rectangles in a histogram.

Question. Difine the ogive curve.
Answer: It is the curve which is constructed by plotting cumulative frequency data on the graph paper in a form of a smooth curve.

Question. What is meant by false base line.
Answer: When there is a large gap between zero and minimum value of a variable than to minimise this gap we use false base line.

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### CBSE Class 11 Economics Statistics For Economics Chapter 3 Organisation Of Data Assignment

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#### Statistics For Economics Chapter 3 Organisation Of Data Assignment Economics CBSE Class 11

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