Quiznetik

Statistics for Tourism Business | Set 1

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 ____________________

Correct : 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 __________

Correct : B. 22

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

Correct : 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

Correct : C. 25

5. Two types of ogives meet at ______________

Correct : C. Median

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

Correct : C. Histogram

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

Correct : D. 51

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

Correct : D. 75

9. Variance= _______________

Correct : D. S.D2

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

Correct : C. Multiplied by 5

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

Correct : C. ∑fIdI/n

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

Correct : 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

Correct : D. 7

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

Correct : C. 4

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

Correct : D. 140

16. Mean deceiation which is calculatedis

Correct : B. Median

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

Correct : D. 0.43

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

Correct : B. 1

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

Correct : C. – ve

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

Correct : A. + ve

21. A time series consists of

Correct : C. four components

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

Correct : B. true to great extent

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

Correct : B. secula

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

Correct : D. allthe above

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

Correct : A. irregular movement

26. Secular trend is indicative of long term variation towards

Correct : C. either increase or decrease

27. seasonal variation means the variations occurring within

Correct : B. parts of a year

28. Index number is a ______________

Correct : D. all the above

29. Index numbers are expressed:

Correct : A. in percentages

30. Index numbers help

Correct : D. all the above

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

Correct : C. Geometric mean

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

Correct : D. 100

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

Correct : A. weights

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

Correct : B. percentage

35. Index number is equal to_________________

Correct : B. average of the price relatives

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

Correct : A. base year

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

Correct : C. unit test

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

Correct : B. plural sense

39. Statistics is applied in ____________________

Correct : D. all the above

40. Which of the following represents statistics

Correct : C. a group of values in a set

41. Statistics deals with

Correct : B. quantitative information

42. Statistical data are collected

Correct : B. for a given purpose

43. Statistical results are

Correct : C. true on an average

44. Statistics does not study

Correct : A. individuals

45. Statistics are

Correct : D. all above

46. Statistical methods

Correct : D. all these

47. Statistics is ________________

Correct : C. both

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

Correct : B. x+k

49. Mean deviation which is calculated is minimum at

Correct : B. median

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

Correct : B. 0

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

Correct : 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

Correct : C. 225