1. The graph of the normal distribution depends on:
Correct : A. Mean and standard deviation
2. ____________use the division of a circle into different sectors.
Correct : C. Sector graph
3. Dividing upper and lower limits of a particular class we get:
Correct : D. Class mark
4. Graph of time series is called
Correct : D. Historigram
5. Cumulative Frequency is _____________frequency.
Correct : A. Increasing
6. Total angles in Pie Chart
Correct : A. 360
7. A Histogram is a set of adjacent
Correct : A. Rectangles
8. The process of systematic arrangement of data in rows and columns is called
Correct : B. Tabulation
9. While constructing frequency distribution, the number of classes used depends upon
Correct : B. Size of class
10. The graph of frequency distribution is called
Correct : B. Histogram
11. Data which have been arranged in ascending or descending order is called_______ data?
Correct : C. Array
12. The graph of a cumulative frequency distribution is called
Correct : D. Ogive
13. In constructing a histogram, if the class interval size of one class is double than others,
then the width of that bar should be?
Correct : A. Doubled
14. Component bar charts are used when data is divided into
Correct : B. Groups
15. In pie- chart, the arrangement of the angles of the different sectors is generally?
Correct : C. Clock-wise
16. The graphs of the symmetrical distribution are?
Correct : C. Bell-shaped
17. For a given class 30-44, the midpoint will be ______?
Correct : C. 37
18. Class mark is the value which divides a class into______ equal parts?
Correct : D. Two
19. A frequency touches the axis
Correct : A. Yes
20. Graphical and numerical methods are specialized process utilized in
Correct : B. Descriptive statistics
21. Individual respondents, focus groups, and panels of respondents are categorized as
Correct : B. Secondary data sources
22. The variables whose calculation is done according to the height, length, and weight are
categorized as
Correct : A. Discrete variables
23. Statistics branches include
Correct : D. Both A & B
24. When each member of a population has an equally likely chance of being selected
Correct : D. An equal probability selection method
25. Which of the following is not a form of non-random sampling?
Correct : D. All of the above
26. Which of the following will give a more accurate representation of the population from
which a sample has been taken?
Correct : D. A large sample based on simple random sampling
27. The process of drawing a sample from a population is known as ____________.
Correct : A. Sampling
28. A _____ is a numerical characteristic of a sample and a _____ is a numerical
characteristic of a population.
Correct : C. Statistic, parameter
29. A graph that uses vertical bars to represent data is called a_____-
Correct : B. Bar graph
30. The goal of _____ is to focus on summarizing and explaining a specific set of data.
Correct : B. Descriptive statistics
31. Which of these is not a method of data collection?
Correct : C. Experiments
32. A census taker often collects data through which of the following ?
Correct : B. Interviews
33. The mean of a sample is
Correct : D. Computed by summing all the data values and dividing the sum by the number of
34. Which of these represent qualitative data?
Correct : B. Liking or disliking of (500) persons of a product
35. Population census is conducted through
Correct : D. Complete enumeration
36. Data classified by many ______are said to be quantitative.
Correct : D. Attributes
37. A graph consists of _______ lines.
Correct : D. Straight
38. The Normal distribution is ___________________?
Correct : B. Mesoukurtic
39. A distribution is called ______ distribution if it has two modes.
Correct : B. Bi-modal
40. Statistics are _____________expressed.
Correct : D. Quantitatively
41. Which of the following is not a pre-requisite for a good measure of central tendency?
Correct : A. It should not be rigidly defined
42. Which one of the following is a pre-requisite for a good measure of dispersion?
Correct : B. It should be easy to calculate
43. In an open ended frequency distribution:
Correct : A. Mean cannot be found
44. Which of the following is true?
Correct : C. Median is not affected by extreme values
45. Which one of the following is a positional average?
Correct : C. Median
46. Which one of the following is not a mathematical average?
Correct : D. Median
47. Which of the following is/are a mathematical averages?
Correct : D. All of the above
48. Choose the correct answer
Correct : B. HM≤GM≤AM
49. The relationship between median, arithmetic mean and mode is
Correct : B. Mode = 3Median – 2Mean
50. If Arithmetic mean = 20 and Median = 25. Then, the value of Mode is equal to__
Correct : D. None of the above
51. The averages are affected by change of:
Correct : C. Both (a) and (b
52. The suitable average for qualitative data is:
Correct : B. Median
53. Suitable average for averaging the shoe sizes for children is:
Correct : B. Mode
54. In a given data the average which has the least value is
Correct : C. Harmonic mean
55. The most commonly occurring value in a group of distribution is known as
Correct : B. Mode
56. Demerit of arithmetic mean is that
Correct : D. It is affected very much by extreme values
57. Which of the following is not a measure of dispersion?
Correct : D. None of the above
58. Which one of the following statement is not true in regard to Mean Deviation?
Correct : C. (a) and (b
59. If a distribution is characterized by _______, then it is apositively skewed distribution
Correct : A. Mean >Median > Mode
60. The information Mean = 46, Median = 48 and Mode = 53 describe a
Correct : B. Negatively skewed distribution
61. In case of a symmetrical distribution,
Correct : C. Mean = Median = Mode
62. Choose correct combination from Group A and B
Group A Group B
(1) Mesokurtic (i) The slender, higher than the normal curve
(2) Platykurtic (ii) The Normal distribution
(3) Leptokurtic (iii) The flat-topped, broader than the normal curve
Correct : C. (1) and (ii), (2) and (iii), (3) and (i
63. Which one of the following statement is/are true for the standard deviation?
1) It is independent on change of scale
2) It is independent on change of origin
3) It is the minimum root-mean-square deviation
Correct : C. (2) and (3) only
64. The algebraic sum of the deviations of a set of values from their arithmetic mean is______
Correct : C. Always zero
65. A measure of dispersion gives some idea about ______
Correct : D. None of the above
66. Standard deviation is the square root of the arithmetic average of the squares of the deviations measured from the_______
Correct : A. Mean
67. Quartile deviation ignores ____ of the data
Correct : D. 50%
68. The variance is
Correct : C. Square of the standard deviation
69. 50% of the values in a distribution are
Correct : A. Above the median value
70. If any of the observations is zero, then the Geometric mean is equal to
Correct : D. Zero
71. A person drives for 200kms at a speed of 30km/hour. He drives another 200kms at a speed of 20km/hour. The appropriate measure for calculating average mean is___
Correct : B. Harmonic mean
72. Quartile deviation is______ of the Standard deviation
Correct : A. 0.6745
73. The outcome of tossing a coin is a
Correct : A. Simple event
74. What is the probability of getting exactly one head in a single throw of two unbiased coins?
Correct : A. 1/2
75. What is the probability of getting a black king from a standard pack of 52 cards?
Correct : B. 2/52
76. What is the probability of getting exactly two tails in a single throw of 3 coins?
Correct : C. 3/8
77. The value of probability lies between
Correct : C. 0 and 1
78. If a ball is drawn at random from a bag containing 4 white, 7 green and 10 black balls,
what is the probability that it is a green ball?
Correct : A. 7/21
79. The probability of the simultaneous occurrence of two events A and B is
Correct : A. P(A) + P(B
80. _________ is calculated on the basis of past experience and on experiment conducted.
Correct : B. Empirical probability
81. Permutation refers to
Correct : A. Arrangements
82. In probability theories, events which can never occur together are called
Correct : C. Mutually exclusive events
83. If the happening of an event is not affected by the happening of other events, it is said to
be
Correct : B. An independent events
84. If it is known that an event A has occurred, the probability of an event B given A is called
Correct : D. Conditional probability
85. In a discrete probability distribution, the random variables are
Correct : B. Whole numbers
86. Binomial distribution is a ________ distribution.
Correct : A. Discrete probability
87. The parameters involved in binomial distribution is/are
Correct : D. n and p
88. It is suitable to use binomial distribution for
Correct : B. Small value of ‘n’
89. In a binomial distribution, if ‘n’ is the number of trials and ‘p’ is the probability of
success, then the mean value is given by
Correct : C. np
90. The variance of binomial distribution can be express as
Correct : C. npq
91. The standard deviation of binomial distribution is express as
Correct : C. �𝑛𝑛𝑛𝑛𝑛𝑛
92. Variance of binomial distribution is maximum when
Correct : B. p = q
93. Poisson distribution is a ________ distribution.
Correct : A. Discrete probability
94. A family of parametric distributions in which mean is equal to variance is
Correct : B. Poisson distribution
95. Poisson distribution is
Correct : A. Positively skewed distribution
96. Poisson distribution has only one parameter which is the
Correct : A. Mean
97. If ‘m’ is the mean of a Poisson distribution, the variance is given by
Correct : B. m
98. Poisson distribution with regard to peakedness is
Correct : C. Leptokurtic
99. The outcomes of tossing a coin five times are a variable of the type
Correct : B. Discrete random variable
100. Which of the following is a continuous distribution