Plus Two / 12th Economics - Book Back Answers - Chapter 12 - English Medium
Chapter 12: Introduction to Statistical Methods and Econometrics
Tamil Nadu Board 12th Standard Economics - Chapter 12: Book Back Answers and Solutions
This post covers the book back answers and solutions for Chapter 12 from the Tamil Nadu State Board 12th Standard Economics textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.
We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.
By going through this material, you’ll gain a strong understanding of Chapter 12 along with the corresponding book back questions and answers (PDF format).
Question Types Covered:
- 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
- 2 Mark Questions: Answer briefly
- 3, 4, and 5 Mark Questions: Answer in detail
All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.
All the best, Class 12 students! Prepare well and aim for top scores. Thank you!
Chapter 12: Introduction to Statistical Methods and Econometrics
I. Choose the correct answer.
1. The word ‘statistics’ is used as __________.
(a) Singular.
(b) Plural
(c) Singular and Plural.
(d) None of above.
Answer Key:
(c) Singular and Plural.
2. Who stated that statistics is a science of estimates and probabilities.
(a) Horace Secrist.
(b) R.A Fisher.
(c) Ya-Lun-Chou
(d) Boddington
Answer Key:
(d) Boddington
3. Sources of secondary data are ___________.
(a) Published sources.
(b) Unpublished sources.
(c) neither published nor unpublished sources.
(d) Both (A) and (B)
Answer Key:
(d) Both (A) and (B)
4. The data collected by questionnaires are_____________.
(a) Primary data.
(b) Secondary data.
(c) Published data.
(d) Grouped data.
Answer Key:
(a) Primary data.
5. A measure of the strength of the linear relationship that exists between two variables is called:
(a) Slope
(b) Intercept
(c) Correlation coefficient
(d) Regression equation
Answer Key:
(c) Correlation coefficient
6. If both variables X and Y increase or decrease simultaneously, then the coefficient of correlation will be:
(a) Positive
(b) Negative
(c) Zero
(d) One
Answer Key:
(a) Positive
7. 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:
(a) Perfect positive
(b) Perfect negative
(c) Negative
(d) Zero
Answer Key:
(c) Negative
8. The value of the coefficient of correlation r lies between:
(a) 0 and 1
(b) -1 and 0
(c) -1 and +1
(d) -0.5 and +0.5
Answer Key:
(c) -1 and +1
9. The term regression was used by:
(a) Newton
(b) Pearson
(c) Spearman
(d) Galton
Answer Key:
(d) Galton
10. The purpose of simple linear regression analysis is to:
(a) Predict one variable from another variable
(b) Replace points on a scatter diagram by a straight-line
(c) Measure the degree to which two variables are linearly associated
(d) Obtain the expected value of the independent random variable for a given value of the dependent variable
Answer Key:
(a) Predict one variable from another variable
11. A process by which we estimate the value of dependent variable on the basis of one or more independent variables is called:
(a) Correlation
(b) Regression
(c) Residual
(d) Slope
Answer Key:
(b) Regression
12. If Y = 2 - 0.2X, then the value of Y intercept is equal to
(a) -0.2
(b) 2
(c) 0.2X
(d) All of the above
Answer Key:
(b) 2
13. In the regression equation Y = β0+β1X, the Y is called:
(a) Independent variable
(b) Dependent variable
(c) Continuous variable
(d) none of the above
Answer Key:
(b) Dependent variable
14. In the regression equation Y = β0+β1X, the X is called:
(a) Independent variable
(b) Dependent variable
(c) Continuous variable
(d) none of the above
Answer Key:
(a) Independent variable
15. Econometrics is the integration of
(a)Economics and Statistics
(b) Economics and Mathematics
(c) Economics, Mathematics and Statistics
(d) None of the above
Answer Key:
(c) Economics, Mathematics and Statistics
16. Econometric is the word coined by
(a) Francis Galton
(b) RagnarFrish
(c) Karl Person
(d) Spearsman
Answer Key:
(b) RagnarFrish
17. The raw materials of Econometrics are:
(a) Data
(b) Goods
(c) Statistics
(d) Mathematics
Answer Key:
(a) Data
18. The term Ui in regression equation is
(a) Residuals
(b) Standard error
(c) Stochastic error term
(d) none
Answer Key:
(c) Stochastic error term
19. The term Ui is introduced for the representation of
(a) Omitted Variable
(b) Standard error
(c) Bias
(d) Discrete Variable
Answer Key:
(a) Omitted Variable
20. Econometrics is the amalgamation of
(a) 3 subjects
(b) 4 subjects
(c) 2 subjects
(d) 5 subjects
Answer Key:
(a) 3 subjects
(a) Singular.
(b) Plural
(c) Singular and Plural.
(d) None of above.
Answer Key:
(c) Singular and Plural.
2. Who stated that statistics is a science of estimates and probabilities.
(a) Horace Secrist.
(b) R.A Fisher.
(c) Ya-Lun-Chou
(d) Boddington
Answer Key:
(d) Boddington
3. Sources of secondary data are ___________.
(a) Published sources.
(b) Unpublished sources.
(c) neither published nor unpublished sources.
(d) Both (A) and (B)
Answer Key:
(d) Both (A) and (B)
4. The data collected by questionnaires are_____________.
(a) Primary data.
(b) Secondary data.
(c) Published data.
(d) Grouped data.
Answer Key:
(a) Primary data.
5. A measure of the strength of the linear relationship that exists between two variables is called:
(a) Slope
(b) Intercept
(c) Correlation coefficient
(d) Regression equation
Answer Key:
(c) Correlation coefficient
6. If both variables X and Y increase or decrease simultaneously, then the coefficient of correlation will be:
(a) Positive
(b) Negative
(c) Zero
(d) One
Answer Key:
(a) Positive
7. 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:
(a) Perfect positive
(b) Perfect negative
(c) Negative
(d) Zero
Answer Key:
(c) Negative
8. The value of the coefficient of correlation r lies between:
(a) 0 and 1
(b) -1 and 0
(c) -1 and +1
(d) -0.5 and +0.5
Answer Key:
(c) -1 and +1
9. The term regression was used by:
(a) Newton
(b) Pearson
(c) Spearman
(d) Galton
Answer Key:
(d) Galton
10. The purpose of simple linear regression analysis is to:
(a) Predict one variable from another variable
(b) Replace points on a scatter diagram by a straight-line
(c) Measure the degree to which two variables are linearly associated
(d) Obtain the expected value of the independent random variable for a given value of the dependent variable
Answer Key:
(a) Predict one variable from another variable
11. A process by which we estimate the value of dependent variable on the basis of one or more independent variables is called:
(a) Correlation
(b) Regression
(c) Residual
(d) Slope
Answer Key:
(b) Regression
12. If Y = 2 - 0.2X, then the value of Y intercept is equal to
(a) -0.2
(b) 2
(c) 0.2X
(d) All of the above
Answer Key:
(b) 2
13. In the regression equation Y = β0+β1X, the Y is called:
(a) Independent variable
(b) Dependent variable
(c) Continuous variable
(d) none of the above
Answer Key:
(b) Dependent variable
14. In the regression equation Y = β0+β1X, the X is called:
(a) Independent variable
(b) Dependent variable
(c) Continuous variable
(d) none of the above
Answer Key:
(a) Independent variable
15. Econometrics is the integration of
(a)Economics and Statistics
(b) Economics and Mathematics
(c) Economics, Mathematics and Statistics
(d) None of the above
Answer Key:
(c) Economics, Mathematics and Statistics
16. Econometric is the word coined by
(a) Francis Galton
(b) RagnarFrish
(c) Karl Person
(d) Spearsman
Answer Key:
(b) RagnarFrish
17. The raw materials of Econometrics are:
(a) Data
(b) Goods
(c) Statistics
(d) Mathematics
Answer Key:
(a) Data
18. The term Ui in regression equation is
(a) Residuals
(b) Standard error
(c) Stochastic error term
(d) none
Answer Key:
(c) Stochastic error term
19. The term Ui is introduced for the representation of
(a) Omitted Variable
(b) Standard error
(c) Bias
(d) Discrete Variable
Answer Key:
(a) Omitted Variable
20. Econometrics is the amalgamation of
(a) 3 subjects
(b) 4 subjects
(c) 2 subjects
(d) 5 subjects
Answer Key:
(a) 3 subjects
II.Answer the following questions.
12th Economics (soon)
III. Answer the following questions.
12th Economics (Soon)
IV. Answer the following questions.
12th Economics (Soon)
0 Comments:
Post a Comment