#### Chapters

Chapter 2: National Income

Chapter 3: Theories of Employment and Income

Chapter 4: Consumption and Investment Functions

Chapter 5: Monetary Economics

Chapter 6: Banking

Chapter 7: International Economics

Chapter 8: International Economic Organisations

Chapter 9: Fiscal Economics

Chapter 10: Environmental Economics

Chapter 11: Economics of Development and Planning

Chapter 12: Introduction to Statistical Methods and Econometrics

## Chapter 12: Introduction to Statistical Methods and Econometrics

### Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Economics Answers Guide Chapter 12 Introduction to Statistical Methods and EconometricsModel Questions - Part A [Pages 278 - 280]

#### Multiple choice questions

The word ‘statistics’ is used as _____.

Singular

Plural

Singular and Plural

None of above

Who stated that statistics is a science of estimates and probabilities.

Horace Secrist

R.A Fisher

Ya-Lun-Chou

Boddington

Sources of secondary data are _________.

Published sources

Unpublished sources

neither published nor unpublished sources

Both (A) and (B)

The data collected by questionnaires are__________.

Primary data

Secondary data

Published data

Grouped data

A measure of the strength of the linear relationship that exists between two variables is called:

Slope

Intercept

Correlation coefficient

Regression equation

If both variables X and Y increase or decrease simultaneously, then the coefficient of correlation will be:

Positive

Negative

Zero

One

If the points on the scatter diagram indicate that as one variable increases the other variable tends to decrease the value of r will be:

Perfect positive

Perfect negative

Negative

Zero

The value of the coefficient of correlation r lies between:

0 and 1

-1 and 0

-1 and +1

-0.5 and +0.5

The term regression was used by:

Newton

Pearson

Spearman

Galton

The purpose of simple linear regression analysis is to:

Predict one variable from another variable

Replace points on a scatter diagram with a straight-line

Measure the degree to which two variables are linearly associated

Obtain the expected value of the independent random variable for a given value of the dependent variable

A process by which we estimate the value of dependent variable on the basis of one or more independent variables is called:

Correlation

Regression

Residual

Slope

If Y = 2 - 0.2X, then the value of the Y-intercept is equal to ______.

-0.2

2

0.2X

All of the above

In the regression equation Y = β_{0} +β_{1} X, the Y is called:

Independent variable

Dependent variable

Continuous variable

none of the above

In the regression equation Y = β_{0} +β_{1} X, the X is called:

Independent variable

Dependent variable

Continuous variable

none of the above

Econometrics is the integration of ______.

Economics and Statistics

Economics and Mathematics

Economics, Mathematics, and Statistics

None of the above

Econometric is the word coined by ______.

Francis Galton

Ragnar Frisch

Karl Person

Spearsman

The raw materials of Econometrics are:

Data

Goods

Statistics

Mathematics

The term Uiin regression equation is a ______.

Residuals

Standard error

Stochastic error term

none

The term Uiis introduced for the representation of ______.

Omitted Variables

Standard error

Bias

Discrete Variable

Econometrics is the amalgamation of ______.

3 subjects

4 subjects

2 subjects

5 subjects

### Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Economics Answers Guide Chapter 12 Introduction to Statistical Methods and EconometricsModel Questions - Part B [Page 280]

#### Answer the following in one or two sentences

What is Statistics?

What are the kinds of Statistics?

What do you mean by Inferential Statistics?

What are the kinds of data?

Define Correlation.

Define Regression.

What is Econometrics?

### Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Economics Answers Guide Chapter 12 Introduction to Statistical Methods and EconometricsModel Questions - Part C [Pages 280 - 281]

#### Answer the following questions in one paragraph

What are the functions of Statistics?

Find the Standard Deviation of the following data: 14, 22, 9, 15, 20, 17, 12, 11.

State and explain the different kinds of Correlation.

Mention the uses of Regression Analysis.

Specify the objectives of econometrics.

Differentiate the economic model with the econometric model.

Discuss the important statistical organizations (offices) in India.

### Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Economics Answers Guide Chapter 12 Introduction to Statistical Methods and EconometricsModel Questions - Part D [Page 281]

#### Answer the following questions

Elucidate the nature and scope of Statistics.

Calculate the Karl Pearson Correlation Co-efficient for the following data

Demand for Product X : | 23 | 27 | 28 | 29 |
30 |
31 | 33 | 35 | 36 | 39 |

Sale of Product Y: | 18 | 22 | 23 | 24 | 25 | 26 | 28 | 29 | 30 | 32 |

Find the regression equation Y on X and X on Y for the following data:

X | 45 | 48 | 50 | 55 |
65 |
70 | 75 | 72 | 80 | 85 |

Y | 25 | 30 | 35 | 30 | 40 | 50 | 45 | 55 | 60 | 65 |

Describe the application of Econometrics in Economics.

## Chapter 12: Introduction to Statistical Methods and Econometrics

## Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Economics Answers Guide chapter 12 - Introduction to Statistical Methods and Econometrics

Tamil Nadu Board Samacheer Kalvi solutions for Class 12th Economics Answers Guide chapter 12 (Introduction to Statistical Methods and Econometrics) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Tamil Nadu Board of Secondary Education Class 12th Economics Answers Guide solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Class 12th Economics Answers Guide chapter 12 Introduction to Statistical Methods and Econometrics are Etymology and Milestones of Statistics in Global Level, Evolution of Statistics in India, Definitions of Statistics, Nature of Statistics, Scope of Statistics for Economics, Characteristics and Functions of Statistics, Limitations of Statistics, Types of Statistics, Data, Arithmetic Mean or Mean, Standard Deviation, Correlation, Regression, Introduction to Econometrics, Official Statistics.

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