1. While computing F ratio, customarily, the larger variance is taken as .....................
Correct : B. Numerator
2. Chi-square test was first used by ...............................
Correct : D. Karl Pearson
3. The Chi-squre quantity ranges from ........................ to ...........................
Correct : C. 0 to ∞
4. Degrees of freedom for Chi-squre test in case of contingency table of order (2x2) is:
Correct : D. 1
5. Degrees of freedom for Chi-squre test in case of contingency table of order (4x3) is:
Correct : C. 6
6. Degrees of freedom for Chi-squre test in case of contingency table of order (5x5) is:
Correct : B. 16
7. The magnitude of the difference between observed frequencies and expected frequencies
is called .......................
Correct : D. Chi-square value
8. When the expected frequencies and observed frequencies completely coincide, the chi- square value will be ..............................
Correct : C. 0
9. If the discrepancy between observed and expected frequencies are greater,
......................... will be the chi-square value.
Correct : A. Greater
10. Calculated value of chi-square is always........................
Correct : A. Positive
11. While applying chi-square test, the frequency in any cell should not be ......................
Correct : B. Less than 5
12. Analysis of variance utilises..................
Correct : A. F test
13. In one way ANOVA, the variances are:
Correct : D. All
14. The technique of analysis of variance was developed by .............................
Correct : C. R A Fisher
15. Non-parametric test is :
Correct : D. None of these
16. .........................tests follow assumptions about population parameters.
Correct : A. Parametric
17. ........................is the simplest and most widely used non-parametric test
Correct : C. Chi-square tst
18. Runs test was designed by .............................
Correct : C. Wald wolfowitz
19. Which one of the following is a non-parametric test?
Correct : A. F test
20. Control charts are also termed as...............................
Correct : C. Both a and b
21. What type of chart will be used to plot the number of defective in the output of any
process?
Correct : D. P chart
22. Process control is carried out:
Correct : B. During production
23. The dividing lines between random and non-random deviations from mean of the
distribution are known as ..........................
Correct : C. Control Limits
24. The control charts used to monitor variable is...........................
Correct : A. Range chart
25. The control charts used to monitor attributes is............................
Correct : B. P-chart
26. The control charts used for the fraction of defective items in a sample is............................
Correct : B. P-chart
27. The control charts used for the number of defects per unit is:
Correct : C. C-chart
28. ........................is user for testing goodness of fit.
Correct : D. Chi-square test
29. Which of the following is a non-parametric test?
Correct : C. Wilcoxon test
30. Regression coefficient is independent of...........................
Correct : A. Origin
31. The geometric mean of the two regression coefficient, bxy and byx is equal to:
Correct : A. R
32. In a correlation analysis, if r= 0, then we may say that there is .................. between
variables.
Correct : A. No correlation
33. If ‘r’ is the correlation coefficient between two variables, then:
Correct : B. – 1 ≤ r ≤ 1
34. Statistics can be best considered as
Correct : C. both art as well as science
35. The mid point of a class is obtained by
Correct : D. ading upper and lower limit and dividing by 2
36. The algebraic sum of the deviations of a set of a n values from their arithmetic mean is
Correct : B. 0
37. Standard deviation is
Correct : A. absolute measure
38. Coefficient of variation is a relative measure of
Correct : D. dispersion
39. In a business house, statistics decreases the:
Correct : B. uncertainty
40. Cartograph is a:
Correct : C. map
41. Statistical results are all the time:
Correct : B. an average
42. Economics cannot be a successful subject without:
Correct : C. statistics
43. The arithmetic mean between 5 + 3 and 5 - 3 is:
Correct : C. 5
44. The geometric mean of two numbers is 16. If one number is 32, the other number is:
Correct : C. 8
45. The harmonic mean of 4 and 6 is:
Correct : B. 4.8
46. Difference between highest and lowest value called:
Correct : D. Range
47. Statistics deals only with
Correct : A. quantitative characteristics
48. Open-end classes are those in which
Correct : A. lower limit of the first class and the upper limit of the last class are known
49. Relationship of mean, median and mode according to Karl Pearson is
Correct : C. mode = 3median – 2 mean
50. The sum of the squares of the deviations of the values of a variable is least when the deviations are measured from
Correct : C. arithmetic mean
51. Mean deviation is
Correct : B. an absolute measures
52. Interquartile range is the difference between
Correct : C. the third quartile and the first quartile
53. The measures of dispersion can never be
Correct : B. negative
54. Which of the following is least when deviations are taken from the median
Correct : C. mean deviation
55. Which average is affected most by extreme observation?
Correct : B. Median
56. A geometric mean of two numbers 12 and 27 is
Correct : C. 18
57. Statistics can be best considered as
Correct : C. Both art as well as science
58. The total of all the observations divided by the number of observations is called
Correct : A. Arithmetic mean
59. Lowest value of variance can be
Correct : D. 0
60. The standard deviation and variance are _______ of origin?
Correct : C. Independent
61. Statistics can be best considered as:
Correct : C. both science as well as art
62. Statistics is helpful in:
Correct : D. all of the above
63. A set of vertical bars whose areas are proportional to the frequencies represented is known as:
Correct : A. Histogram
64. The value in a series of observations which occurs with the greatest frequency is called:
Correct : D. mode
65. What is the median of the sample 5, 5, 11, 9, 8, 5, 8?
Correct : C. 8
66. Karl Pearson has expressed the relationship between Mean, Median, and Mode as:
Correct : D. All of the above
67. The average difference between the items in a distribution and the median or mean of that series is known as:
Correct : B. Mean deviation
68. If all the scores on examination cluster around the mean, the dispersion is said to be:
Correct : A. Small
69. If two events cannot occur simultaneously at the same trial then they are
Correct : C. mutually exclusive events
70. If two events A and B are independent, the probability that they will both occur is given by
Correct : B. P (A) x P (B)
71. Those in which the occurence or non occurence of an event in any one trial affects the probability of other event in other trial. This is known as
Correct : A. dependent event
72. If the probability of drawing a spade from a well shuffled pack of playing card is 14 then the probability that of the card drawn from a well shuffled pack of playing card is ‘not a spade’ is
Correct : D. 34
73. The coefficient of correlation
Correct : D. varies between -1 and +1
74. In a box, there are 8 red,7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?
Correct : A. 1/3
75. Probability sampling and random sampling are
Correct : C. Synonymous
76. Coefficient of correlation will be always
Correct : D. Between -1 and +1
77. We can measure the cause and effect relationship by the help of
Correct : D. Regression analysis
78. The total events to throw three dice simultaneously is
Correct : D. 216
79. Which of the following cannot be the probability of an event?
Correct : A. 1.5
80. When the two regression lines are parallel to each other, then their slopes are
Correct : C. Same
81. In scatter diagram, if most of the points lie in the first and third quadrants, then
coefficient of correlation is:
Correct : B. Positive
82. Rank correlation coefficient is also known as
10
Correct : D. Spearman’s Correlation Coefficient
83. Correlation does not imply
Correct : B. cause-effect relationship
84. The value of the correlation coefficient ranges from
Correct : C. -1 to 1
85. If both the variables are varying in the same direction, the correlation is said to be
Correct : A. Positive correlation
86. When two events cannot occur simultaneously in a single trial it is called
Correct : A. Mutually exclusive events
87. When the outcome of one event does not affect the outcome of the other it is said to be
Correct : B. Independent event
88. Regression coefficient is independent of
Correct : A. Origin
89. The slope of regression line of Y on X is also called the
Correct : D. Regression coefficient of Y on X
90. Two events that cannot be happened simultaneously is known as:
Correct : C. Mutually exclusive events
91. If two events A and B are mutually exclusive the probability of the occurrence of either A
or B is the sum individual probability of A and B. This theorem is called:
Correct : B. Addition theorem
92. One card is drawn from a standard pack of 52. What is the probability that the card drawn
is a king?
Correct : A. 4/52
93. A dice is thrown. Find the probability of getting an even number?
Correct : B. 3/6
94. If both variables are varying in the opposite direction, it is called:
Correct : D. Negative correlation
95. In perfect positive correlation:
Correct : C. r = +1
96. In regression analysis, the variable that is being predicted is the
Correct : A. explained or dependentvariable
97. The coefficient of correlation
Correct : B. is the square root of the coefficient of determination
98. The total current year prices for the various commodities in question is divided by the total of base year prices and the quotient is multiplied under
Correct : A. simple aggregative method
99. Fishers’ index number is
Correct : C. The geometric mean of Laspeyres and Paasches’ index
100. A component of time series used for short term forecast is