McqMate

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1. |
## The median of a series is 10. Two additional observations 8 and 15 are added to the series. The median of the new series will be ____________________ |

A. | 8 |

B. | 15 |

C. | 11 |

D. | 10 |

Answer» D. 10 |

2. |
## If the mean ages of a group of boys is 20 years, then the mean of their ages after 2 years is __________ |

A. | 20 |

B. | 22 |

C. | 10 |

D. | None of these |

Answer» B. 22 |

3. |
## The median of a frequency distribution is graphically with the help of ______________- |

A. | Graph |

B. | Ogive |

C. | Mode |

D. | None of these |

Answer» B. Ogive |

4. |
## Find the value of x, if the mode of the data is 25. 15,20,25,18,14,15,25,15,18,16,20,25,20,x |

A. | 20 |

B. | 10 |

C. | 25 |

D. | None of these |

Answer» C. 25 |

5. |
## Two types of ogives meet at ______________ |

A. | Mode |

B. | Mean |

C. | Median |

D. | None of these |

Answer» C. Median |

6. |
## The mode of a frequency distribution can be determined graphically by |

A. | Median |

B. | Ogive |

C. | Histogram |

D. | None of these |

Answer» C. Histogram |

7. |
## Calculate median 35,23,45,50,80,61,92,40,52,61 |

A. | 23 |

B. | 50 |

C. | 80 |

D. | 51 |

Answer» D. 51 |

8. |
## Find the range and the coefficient of range for the following values 25,32,85,32,42,10,20,18,28 |

A. | 25 |

B. | 85 |

C. | 10 |

D. | 75 |

Answer» D. 75 |

9. |
## Variance= _______________ |

A. | S.D |

B. | X |

C. | C.V |

D. | S.D2 |

Answer» D. S.D2 |

10. |
## If all the values of a series are multiplied by 5 what happens to the S.D |

A. | Decreasing by 5 |

B. | Increasing by 5 |

C. | Multiplied by 5 |

D. | None of these |

Answer» C. Multiplied by 5 |

11. |
## For a frequency distribution M.D from mean is completed by _____________ |

A. | ∑x/n |

B. | ∑fx/n |

C. | ∑fIdI/n |

D. | None of these |

Answer» C. ∑fIdI/n |

12. |
## The mean duration of the series : a,a+d,a+2d,………,a+2n from its mean is |

A. | n(n-1) |

B. | n(n-1)/2 |

C. | n(n+1)/2 |

D. | n(n+1)d/2n+1 |

Answer» D. n(n+1)d/2n+1 |

13. |
## Find the sum of the duration of the variable values 3,4,6,8,14 from their mean |

A. | 3 |

B. | 4 |

C. | 8 |

D. | 7 |

Answer» D. 7 |

14. |
## The varience of 15 observations is 4, if each observation is increased by 9, the varience of the resulting observation is |

A. | 8 |

B. | 16 |

C. | 4 |

D. | None of these |

Answer» C. 4 |

15. |
## Find the value of third quartile if the values of first quartile and quartile deceiation are 104 & 108 respectively |

A. | 120 |

B. | 70 |

C. | 110 |

D. | 140 |

Answer» D. 140 |

16. |
## Mean deceiation which is calculatedis |

A. | Mean |

B. | Median |

C. | Mode |

D. | None of these |

Answer» B. Median |

17. |
## Find the probable error if r=0.6 and n=64 |

A. | 0.8 |

B. | 0.7 |

C. | 64 |

D. | 0.43 |

Answer» D. 0.43 |

18. |
## Maximum positive value of coefficient of correlation is ___________- |

A. | 0 |

B. | 1 |

C. | 2 |

D. | None of these |

Answer» B. 1 |

19. |
## If correlation coefficient r is –ve, both the regression coefficients are ____________ |

A. | + ve |

B. | 0 |

C. | – ve |

D. | None of these |

Answer» C. – ve |

20. |
## When the values of two variables change in the same direction, there is _________correlation |

A. | + ve |

B. | – ve |

C. | Perfect |

D. | None of these |

Answer» A. + ve |

21. |
## A time series consists of |

A. | two components |

B. | three components |

C. | four components |

D. | none of the above |

Answer» C. four components |

22. |
## The forecarts on the bacis of a time series are |

A. | Cent per unit time |

B. | true to great extent |

C. | Never true |

D. | True to some extend |

Answer» B. true to great extent |

23. |
## The component of a time series attached to long term variations is termed as: |

A. | cyclic variation |

B. | secula |

C. | irregular variation |

D. | all the above |

Answer» B. secula |

24. |
## The component of a time series which is attached to short term fluctuations is |

A. | seasonal variation |

B. | cyclic variation |

C. | irregular variatio |

D. | allthe above |

Answer» D. allthe above |

25. |
## A lock-out in a factory for a month is associated with the component of a time series is : |

A. | irregular movement |

B. | secular trend |

C. | cyclic variation |

D. | none of these |

Answer» A. irregular movement |

26. |
## Secular trend is indicative of long term variation towards |

A. | increase only |

B. | decrease only |

C. | either increase or decrease |

D. | none of the above |

Answer» C. either increase or decrease |

27. |
## seasonal variation means the variations occurring within |

A. | a number of year |

B. | parts of a year |

C. | parts of a month |

D. | none of the above |

Answer» B. parts of a year |

28. |
## Index number is a ______________ |

A. | measure of relative changes. |

B. | a special type of an average. |

C. | a percentage relative |

D. | all the above |

Answer» D. all the above |

29. |
## Index numbers are expressed: |

A. | in percentages |

B. | in ratios |

C. | in terms of absolute value |

D. | all the above |

Answer» A. in percentages |

30. |
## Index numbers help |

A. | in framing of economic policies |

B. | in assessing the purchasing power of mony |

C. | for adjusting national income |

D. | all the above |

Answer» D. all the above |

31. |
## The best average for constructing an index numbers is _________________ |

A. | Arithmetic mean |

B. | Harmonic mean |

C. | Geometric mean |

D. | weighted mean |

Answer» C. Geometric mean |

32. |
## Index no. for the base period is always taken as |

A. | 200 |

B. | 50 |

C. | 1 |

D. | 100 |

Answer» D. 100 |

33. |
## _________ play a very important part in the construction of index numbers. |

A. | weights |

B. | classes |

C. | c.estinations |

D. | none |

Answer» A. weights |

34. |
## Index numbers show ____________ changes rather than absolute changes. |

A. | relative |

B. | percentage |

C. | both |

D. | none |

Answer» B. percentage |

35. |
## Index number is equal to_________________ |

A. | sum of price relatives |

B. | average of the price relatives |

C. | product of price relative |

D. | none |

Answer» B. average of the price relatives |

36. |
## Laspeyer’s index formula use the weights of the |

A. | base year |

B. | current year |

C. | average of the weights of a number of year |

D. | none of the above |

Answer» A. base year |

37. |
## If the index number is independent of the units of measurement ,then it satisfies |

A. | time reversal test |

B. | factor reversal test |

C. | unit test |

D. | all the above |

Answer» C. unit test |

38. |
## Statistics is defined in terms of numerical data in the___________ |

A. | singular sense |

B. | plural sense |

C. | either a or b |

D. | both a and b |

Answer» B. plural sense |

39. |
## Statistics is applied in ____________________ |

A. | economics |

B. | business management |

C. | commerce and industry |

D. | all the above |

Answer» D. all the above |

40. |
## Which of the following represents statistics |

A. | a single value |

B. | only two values in a set |

C. | a group of values in a set |

D. | none of these |

Answer» C. a group of values in a set |

41. |
## Statistics deals with |

A. | qualitative information |

B. | quantitative information |

C. | both |

D. | none of these |

Answer» B. quantitative information |

42. |
## Statistical data are collected |

A. | without any purpose |

B. | for a given purpose |

C. | any purpose |

D. | none of these |

Answer» B. for a given purpose |

43. |
## Statistical results are |

A. | absolutely correct |

B. | not true |

C. | true on an average |

D. | universally true |

Answer» C. true on an average |

44. |
## Statistics does not study |

A. | individuals |

B. | groups |

C. | aggregates |

D. | all above |

Answer» A. individuals |

45. |
## Statistics are |

A. | aggregates of facts |

B. | numerically expressed |

C. | systematically collected |

D. | all above |

Answer» D. all above |

46. |
## Statistical methods |

A. | collection of data |

B. | classification |

C. | analysis and inter correlation of data |

D. | all these |

Answer» D. all these |

47. |
## Statistics is ________________ |

A. | an art |

B. | a science |

C. | both |

D. | none of these |

Answer» C. both |

48. |
## The mean of a observation is x. If k is added to each observation then new mean is_______________ |

A. | x |

B. | x+k |

C. | x-k |

D. | kx |

Answer» B. x+k |

49. |
## Mean deviation which is calculated is minimum at |

A. | mean |

B. | median |

C. | c.mode |

D. | d.all of these |

Answer» B. median |

50. |
## Find the sum of the deviation of the variable values 3,4,6,8,14 from their mean |

A. | a.5 |

B. | 0 |

C. | 1 |

D. | 7 |

Answer» B. 0 |

51. |
## Method of least squares to fit in the trend is applicable only if the trend is____________ |

A. | linex |

B. | parabolic |

C. | both a & b |

D. | neither a nor c |

Answer» C. both a & b |

52. |
## If the prices of all commodities in a place have increased 1.25 times more on the base period price. The index number of prices of that place is now |

A. | 125 |

B. | 150 |

C. | 225 |

D. | None of these |

Answer» C. 225 |

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