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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

12th Standard English Medium Economics Subject Introduction to Statistical Methods and Econometrics Creative 2 Mark Questions with Solution Part - II

Published on: 23/06/2021

QB365 provides detailed and simple solution for every Creative Questions in class 12 Economics Subject. It will helps to get more idea about question pattern in every Creative questions with solution.

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Std: 12th Standard - Economics

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

Write some of econometric software that you may know.

Write an equation on :
i) Statistics Regression,
ii) Econometrics Regression

Explain the following term: Σdxdy, Σdx², Σdy², Σdx and Σdy.

Write the meaning of Rank Data.

Write a short note on Statistics and Economics.

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Answers Key:

Generic 2

5 x 2 = 10

There are many other packages which are used by econometricians, include Eviews, Gretl, PcGive, Python, RATS, SAS.

i. Statistics Regression: Yi = β0 + β1Xi
ii. Econometrics Regression: Yi = β0 + β1Xi + Ui

1. Σdxdy = Sum of product of the deviations x and y series from their assumed means.
2. Σdx2 = Sum of the squares of the deviations of x series from an assumed mean.
3. Σdy2 = Sum of the squares of the deviations of y series from an assumed mean
4. Σdx = Sum of the deviation of x series from an assumed mean of x.
5. Σdy = Sum of the deviation of y series from an assumed mean of y.

1. Rank data, on the other hand, are the result of assigning ranks to specify order in terms of the integers 1,2,3, ..., n.
2. Ranks may be assigned according to the level of performance in a test, a contest, a competition, an interview, or a show.

Statistical data and techniques are immensely useful in solving many economic problems such as fluctuation in wages, prices, production, distribution of income and wealth and so on.