## MCQs Number System – 4 MCQs Mathematics covers the topic of the Number system for the preparation of Intermediate mathematics.

1. If $z$ is a real number then

2. If $z=3-5i$ then $|z|^2$ is equal to

3. If a point $A$ of a coordinate plane corresponds to the ordered pair $(a, b)$, then $a$ and $b$ are called

4. If $z=a+ib$ then $(z^2+\overline{z}^2)$ is equal to

5. Polar form of $1+i\sqrt{3}$ is

6. If $|x+5i|=3$ then $x$ is equal to

7. If $z=x+iy$ then $|z|=? 8. Polar form of$(\sqrt{3} + i)$is 9. Real part of$(x+iy)^n$is 10. The modulus of$z$is 11. If$z_1=2+3i$,$z_2=1-i$then$|z_1z_2|=$12. The correct statement of De Mover’s Theorem is$(cos \theta + i\, sin\, \theta)^n$is equal to 13. The geometrical plane on which coordinate system has been specified is called 14. Imaginary part of$(-2+3i)^2$is equal to 15. The modulus value of a complex number$z=x+iy$is the distance from 16. If$R$is the set of real number, then product$R\times R$is called 17. The set$\{1, -1\}$possesses closure property w.r.t. 18. If point$A$of the coordinate plane corresponds to the ordered pair$(a,b)$then 19. Golden rule of fraction is that for$k\ne 0 $,$\frac{a}{b} =\$

20. 0.1428571428571…. is

## MCQs Economics – 3 Please go to MCQs Economics – 3 to view the test

## MCQs Economics – 2 Please go to MCQs Economics – 2 to view the test

Try MCQs Economics Test 1

## MCQs Economics – 1 Please go to MCQs Economics – 1 to view the test

## MCQs Econometrics Quiz 5 This quiz is about Econometrics, which covers the topics of Regression analysis, correlation, dummy variable, multicollinearity, heteroscedasticity, autocorrelation, and many other topics. Let’s start with MCQs Econometrics test

Please go to MCQs Econometrics Quiz 5 to view the test

An application of different statistical methods applied to the economic data used to find empirical relationships between economic data is called Econometrics.

Econometrics means “Economic Measurement”. Econometrics is the quantitative analysis of actual economic phenomena based on the concurrent development of theory and observation, related by appropriate methods of statistical inference.

Econometrics can also be defined as the empirical determination of economic laws. Econometrics can be classified as (i) Theoretical Econometrics and (ii) Applied Econometrics.

### (i) Theoretical Econometrics

Theoretical econometrics is concerned with developing appropriate methods for measuring economic relationships specified by econometric models. Theoretical econometrics leans heavily on mathematical statistics and must spell out the assumptions of methods (such as Least Squares), their properties, and what happens to these properties when one or more of the assumptions of the technique are not fulfilled.

### (ii) Applied Econometrics

In applied econometrics, the tools of theoretical econometrics are used to study special fields(s) such as production function, investment function, demand and supply function, portfolio theory, etc.

## Types of Econometrics Data

Different type of data is used in Econometrics. There are three important types of data for empirical analysis:

• Time Series Data
A time series data is a set of observations on the values that a variable takes at different times. The time series data may be collected at regular time intervals such as daily, weekly, monthly, quarterly, annually, etc.
• Cross-Sectional Data
Cross-sectional data are data on one or more variables collected at the same point in time. Cross-sectional data has a problem of heterogeneity.
• Pooled Data
Pooled data is a combination of both time series and cross-sectional data.

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