Quiznetik

Business Statistics | Set 3

1. The Correlation coefficient between two variables is the………………..of their regression coefficients.

Correct : B. Geometric mean

2. The percent of the total variation of the dependent variable Y explained by the set of independent variables X is measured by:

Correct : C. Coefficient of Determination

3. The value of the correlation coefficient lies between

Correct : A. -1 and +1

4. A Scatter diagram is considered for measuring

Correct : D. Both a and b

5. The maximum value of the Rank Correlation coefficient is

Correct : A. +1

6. What is the purpose of a simple linear regression?

Correct : A. To predict scores on a dependent variable from scores on a single independent variable

7. If r is the simple correlation coefficient, the quantity 𝑟2 is known as ...................

Correct : A. Coefficient of determination

8. Asimpleindexnumberis anumberthatmeasures arelativechangein ?

Correct : B. single variable with respect to a base

9. Which index number is called as ideal index number.

Correct : C. Fisher

10. Secular trend can be measured by:

Correct : C. Four methods

11. Fishers price index number is the -------

Correct : B. G.M. of Lasperys and Paasches.

12. Relative Method is further divided into how many types?

Correct : B. two

13. In Price Index Numbers prices can either be ?

Correct : C. Both I and II

14. While computing a weighted index, the current period quantities are used in the:

Correct : B. Paasche's method

15. ………….is a point of reference in comparing various data describing individual behaviour.

Correct : B. Base period

16. Wheat crops badly damaged on account of rains is:

Correct : B. Random movement

17. A complete business cycle consists of a period of:

Correct : C. Both prosperity and recession

18. Which of the following can’t be a component for a time series plot?

Correct : E. None of the above

19. The additive and multiplicative time series models are:

Correct : A. Y = T + S + C + I and Y = TSCI respectively

20. Value of b in the trend line Y = a + bX is:

Correct : C. Both positive or negative

21. In a straight line equation Y = a + bX; a and b are respectively:

Correct : B. Y intercept and slope

22. A time series consists of:

Correct : D. All of the above