McqMate
Chapters
1. |
The graph of the normal distribution depends on: |
A. | Mean and standard deviation |
B. | Harmonic and standard deviation |
C. | Harmonic mean |
D. | Standard deviation |
Answer» A. Mean and standard deviation |
2. |
____________use the division of a circle into different sectors. |
A. | Conversion graphs |
B. | Frequency polygon |
C. | Sector graph |
D. | Line graph |
Answer» C. Sector graph |
3. |
Dividing upper and lower limits of a particular class we get: |
A. | Class interval |
B. | Class frequency |
C. | Class boundary |
D. | Class mark |
Answer» D. Class mark |
4. |
Graph of time series is called |
A. | Polygon |
B. | Histogram |
C. | Ogive |
D. | Historigram |
Answer» D. Historigram |
5. |
Cumulative Frequency is _____________frequency. |
A. | Increasing |
B. | Decreasing |
C. | Fixed |
D. | None of these |
Answer» A. Increasing |
6. |
Total angles in Pie Chart |
A. | 360 |
B. | 90 |
C. | 180 |
D. | 45 |
Answer» A. 360 |
7. |
A Histogram is a set of adjacent |
A. | Rectangles |
B. | Triangles |
C. | Squares |
D. | Lines |
Answer» A. Rectangles |
8. |
The process of systematic arrangement of data in rows and columns is called |
A. | Array |
B. | Tabulation |
C. | Classification |
D. | None of these |
Answer» B. Tabulation |
9. |
While constructing frequency distribution, the number of classes used depends upon |
A. | Number of observation |
B. | Size of class |
C. | Range of data |
D. | None of these |
Answer» B. Size of class |
10. |
The graph of frequency distribution is called |
A. | Curve |
B. | Histogram |
C. | Cumulative Frequency Polygon |
D. | Ogive |
Answer» B. Histogram |
11. |
Data which have been arranged in ascending or descending order is called_______ data? |
A. | Grouped data |
B. | Classified |
C. | Array |
D. | Ungrouped data |
Answer» C. Array |
12. |
The graph of a cumulative frequency distribution is called |
A. | Frequency polygon |
B. | Histogram |
C. | Cumulative frequency polygon |
D. | Ogive |
Answer» 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? |
A. | Doubled |
B. | Half |
C. | One |
D. | Quarter |
Answer» A. Doubled |
14. |
Component bar charts are used when data is divided into |
A. | Parts |
B. | Groups |
C. | Circles |
D. | None of these |
Answer» B. Groups |
15. |
In pie- chart, the arrangement of the angles of the different sectors is generally? |
A. | Anti-clockwise |
B. | Arrayed |
C. | Clock-wise |
D. | Alternative |
Answer» C. Clock-wise |
16. |
The graphs of the symmetrical distribution are? |
A. | J-shaped |
B. | U-shaped |
C. | Bell-shaped |
D. | None of these |
Answer» C. Bell-shaped |
17. |
For a given class 30-44, the midpoint will be ______? |
A. | 30 |
B. | 34 |
C. | 37 |
D. | 35 |
Answer» C. 37 |
18. |
Class mark is the value which divides a class into______ equal parts? |
A. | Four |
B. | One |
C. | Three |
D. | Two |
Answer» D. Two |
19. |
A frequency touches the axis |
A. | Yes |
B. | No |
C. | Sometimes |
D. | None of these |
Answer» A. Yes |
20. |
Graphical and numerical methods are specialized process utilized in |
A. | Education statistics |
B. | Descriptive statistics |
C. | Business statistics |
D. | Social statistics |
Answer» B. Descriptive statistics |
21. |
Individual respondents, focus groups, and panels of respondents are categorized as |
A. | Primary data sources |
B. | Secondary data sources |
C. | Itemized data sources |
D. | Pointed data sources |
Answer» B. Secondary data sources |
22. |
The variables whose calculation is done according to the height, length, and weight are categorized as |
A. | Discrete variables |
B. | Flowchart variables |
C. | Measuring variables |
D. | Continuous variables |
Answer» A. Discrete variables |
23. |
Statistics branches include |
A. | Applied statistics |
B. | Mathematical statistics |
C. | Industry statistics |
D. | Both A & B |
Answer» D. Both A & B |
24. |
When each member of a population has an equally likely chance of being selected |
A. | Non-random sampling method |
B. | Quota sample |
C. | Snowball sample |
D. | An equal probability selection method |
Answer» D. An equal probability selection method |
25. |
Which of the following is not a form of non-random sampling? |
A. | Snowball sampling |
B. | Quota sampling |
C. | Purposive sampling |
D. | All of the above |
Answer» 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? |
A. | A large sample based on the convenience sampling technique |
B. | A small sample based on simple random sampling |
C. | A small cluster sample |
D. | A large sample based on simple random sampling |
Answer» D. A large sample based on simple random sampling |
27. |
The process of drawing a sample from a population is known as ____________. |
A. | Sampling |
B. | Census |
C. | Survey research |
D. | None of the above |
Answer» A. Sampling |
28. |
A _____ is a numerical characteristic of a sample and a _____ is a numerical characteristic of a population. |
A. | Sample, population |
B. | Population, sample |
C. | Statistic, parameter |
D. | Parameter, statistic |
Answer» C. Statistic, parameter |
29. |
A graph that uses vertical bars to represent data is called a_____- |
A. | Line graph |
B. | Bar graph |
C. | Scatter-plot |
D. | Vertical graph |
Answer» B. Bar graph |
30. |
The goal of _____ is to focus on summarizing and explaining a specific set of data. |
A. | Inferential statistics |
B. | Descriptive statistics |
C. | Both a & b |
D. | None of the above |
Answer» B. Descriptive statistics |
31. |
Which of these is not a method of data collection? |
A. | Questionnaires |
B. | Interviews |
C. | Experiments |
D. | Observations |
Answer» C. Experiments |
32. |
A census taker often collects data through which of the following ? |
A. | Standardized tests |
B. | Interviews |
C. | Secondary data |
D. | Observations |
Answer» B. Interviews |
33. |
The mean of a sample is |
A. | Always equal to the mean of the population |
B. | Always smaller than the mean of the population |
C. | Computed by summing the data values and dividing the sum by (n-1 |
D. | Computed by summing all the data values and dividing the sum by the number of |
Answer» D. Computed by summing all the data values and dividing the sum by the number of |
34. |
Which of these represent qualitative data? |
A. | Height of a student |
B. | Liking or disliking of (500) persons of a product |
C. | The income of a government servant in a city |
D. | Yield from a wheat plot |
Answer» B. Liking or disliking of (500) persons of a product |
35. |
Population census is conducted through |
A. | Sample survey |
B. | Accounting |
C. | Investigation |
D. | Complete enumeration |
Answer» D. Complete enumeration |
36. |
Data classified by many ______are said to be quantitative. |
A. | Characteristics |
B. | Categories |
C. | Affinities |
D. | Attributes |
Answer» D. Attributes |
37. |
A graph consists of _______ lines. |
A. | Parallel line |
B. | Smooth curve |
C. | Curve |
D. | Straight |
Answer» D. Straight |
38. |
The Normal distribution is ___________________? |
A. | Platykurtic |
B. | Mesoukurtic |
C. | Leptokurtic |
D. | None of these |
Answer» B. Mesoukurtic |
39. |
A distribution is called ______ distribution if it has two modes. |
A. | Uni-modal |
B. | Bi-modal |
C. | Tri-modal |
D. | None of these |
Answer» B. Bi-modal |
40. |
Statistics are _____________expressed. |
A. | Descriptive |
B. | Ability |
C. | Qualitatively |
D. | Quantitatively |
Answer» D. Quantitatively |
41. |
Which of the following is not a pre-requisite for a good measure of central tendency? |
A. | It should not be rigidly defined |
B. | It should be based on all observations |
C. | It should not be affected by fluctuation of sampling |
D. | None of the above |
Answer» A. It should not be rigidly defined |
42. |
Which one of the following is a pre-requisite for a good measure of dispersion? |
A. | It should be affected by fluctuation of sampling |
B. | It should be easy to calculate |
C. | It should not be based on all observations |
D. | All of the above |
Answer» B. It should be easy to calculate |
43. |
In an open ended frequency distribution: |
A. | Mean cannot be found |
B. | Median cannot be found |
C. | Mode cannot be found |
D. | None of the above |
Answer» A. Mean cannot be found |
44. |
Which of the following is true? |
A. | Median cannot be located in an open ended distribution |
B. | Median is badly affected by extreme values |
C. | Median is not affected by extreme values |
D. | All of the above |
Answer» C. Median is not affected by extreme values |
45. |
Which one of the following is a positional average? |
A. | Geometric mean |
B. | Harmonic mean |
C. | Median |
D. | None of the above |
Answer» C. Median |
46. |
Which one of the following is not a mathematical average? |
A. | Geometric mean |
B. | Harmonic mean |
C. | Arithmetic mean |
D. | Median |
Answer» D. Median |
47. |
Which of the following is/are a mathematical averages? |
A. | Geometric mean |
B. | Harmonic mean |
C. | Arithmetic mean |
D. | All of the above |
Answer» D. All of the above |
48. |
Choose the correct answer |
A. | HM≥GM≥AM |
B. | HM≤GM≤AM |
C. | GM>HM>AM |
D. | None of the above |
Answer» B. HM≤GM≤AM |
49. |
The relationship between median, arithmetic mean and mode is |
A. | Mode = 2Median – 3Mean |
B. | Mode = 3Median – 2Mean |
C. | Median= 3Mode – 2Mean |
D. | Mean = 3Median – 2Mode |
Answer» B. Mode = 3Median – 2Mean |
50. |
If Arithmetic mean = 20 and Median = 25. Then, the value of Mode is equal to__ |
A. | 22.5 |
B. | 20.5 |
C. | 30.0 |
D. | None of the above |
Answer» D. None of the above |
51. |
The averages are affected by change of: |
A. | Origin |
B. | Scale |
C. | Both (a) and (b |
D. | None of the above |
Answer» C. Both (a) and (b |
52. |
The suitable average for qualitative data is: |
A. | Mean |
B. | Median |
C. | Mode |
D. | Geometric mean |
Answer» B. Median |
53. |
Suitable average for averaging the shoe sizes for children is: |
A. | Mean |
B. | Mode |
C. | Median |
D. | Geometric mean |
Answer» B. Mode |
54. |
In a given data the average which has the least value is |
A. | Mean |
B. | Median |
C. | Harmonic mean |
D. | Geometric mean |
Answer» C. Harmonic mean |
55. |
The most commonly occurring value in a group of distribution is known as |
A. | Median |
B. | Mode |
C. | Mean |
D. | None of the above |
Answer» B. Mode |
56. |
Demerit of arithmetic mean is that |
A. | It is not based on all observations |
B. | It is not amendable to algebraic treatment |
C. | It is not rigidly defined |
D. | It is affected very much by extreme values |
Answer» D. It is affected very much by extreme values |
57. |
Which of the following is not a measure of dispersion? |
A. | Range |
B. | Inter Quartile Range |
C. | Mean Deviation |
D. | None of the above |
Answer» D. None of the above |
58. |
Which one of the following statement is not true in regard to Mean Deviation? |
A. | It does not take into account the algebraic sign(+ or - |
B. | It can be computed from median or mode or mean |
C. | (a) and (b |
D. | None of the above |
Answer» C. (a) and (b |
59. |
If a distribution is characterized by _______, then it is apositively skewed distribution |
A. | Mean >Median > Mode |
B. | Mean <Median< Mode |
C. | Mean = Median = Mode |
D. | None of the above |
Answer» A. Mean >Median > Mode |
60. |
The information Mean = 46, Median = 48 and Mode = 53 describe a |
A. | Positively skewed distribution |
B. | Negatively skewed distribution |
C. | Leptokurtic distribution |
D. | None of the above |
Answer» B. Negatively skewed distribution |
61. |
In case of a symmetrical distribution, |
A. | Mean >Median > Mode |
B. | Mean <Median< Mode |
C. | Mean = Median = Mode |
D. | None of the above |
Answer» C. Mean = Median = Mode |
62. |
Choose correct combination from Group A and B
|
A. | (1) and (i), (2) and (ii), (3) and (iii |
B. | (1) and (ii), (2) and (i), (3) and (iii |
C. | (1) and (ii), (2) and (iii), (3) and (i |
D. | None of the above |
Answer» C. (1) and (ii), (2) and (iii), (3) and (i |
63. |
Which one of the following statement is/are true for the standard deviation?
|
A. | (1) only |
B. | (1) and (2) only |
C. | (2) and (3) only |
D. | All of them |
Answer» C. (2) and (3) only |
64. |
The algebraic sum of the deviations of a set of values from their arithmetic mean is______ |
A. | Always one |
B. | Always positive |
C. | Always zero |
D. | Always negative |
Answer» C. Always zero |
65. |
A measure of dispersion gives some idea about ______ |
A. | The size of average mean |
B. | The size of the median |
C. | The size of the modal class |
D. | None of the above |
Answer» 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_______ |
A. | Mean |
B. | Mode |
C. | Median |
D. | All of the above |
Answer» A. Mean |
67. |
Quartile deviation ignores ____ of the data |
A. | 75% |
B. | 60% |
C. | 55% |
D. | 50% |
Answer» D. 50% |
68. |
The variance is |
A. | Same as standard deviation |
B. | Square root of the standard deviation |
C. | Square of the standard deviation |
D. | None of the above |
Answer» C. Square of the standard deviation |
69. |
50% of the values in a distribution are |
A. | Above the median value |
B. | Below the mode value |
C. | Above mean value |
D. | Below mean value |
Answer» A. Above the median value |
70. |
If any of the observations is zero, then the Geometric mean is equal to |
A. | Mean |
B. | Median |
C. | Mode |
D. | Zero |
Answer» 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___ |
A. | Mean |
B. | Harmonic mean |
C. | Geometric mean |
D. | All of the above |
Answer» B. Harmonic mean |
72. |
Quartile deviation is______ of the Standard deviation |
A. | 0.6745 |
B. | 0.7979 |
C. | 0.50 |
D. | None of the above |
Answer» A. 0.6745 |
73. |
The outcome of tossing a coin is a |
A. | Simple event |
B. | Mutually exclusive event |
C. | Compound event |
D. | Complementary event |
Answer» A. Simple event |
74. |
What is the probability of getting exactly one head in a single throw of two unbiased coins? |
A. | 1/2 |
B. | 1/4 |
C. | 3/4 |
D. | 1 |
Answer» A. 1/2 |
75. |
What is the probability of getting a black king from a standard pack of 52 cards? |
A. | 1/52 |
B. | 2/52 |
C. | 4/52 |
D. | None of the above |
Answer» B. 2/52 |
76. |
What is the probability of getting exactly two tails in a single throw of 3 coins? |
A. | 1/8 |
B. | 2/8 |
C. | 3/8 |
D. | 2/6 |
Answer» C. 3/8 |
77. |
The value of probability lies between |
A. | 0 and ∞ |
B. | -1 and +1 |
C. | 0 and 1 |
D. | 1 and 100 |
Answer» 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? |
A. | 7/21 |
B. | 4/21 |
C. | 7/7 |
D. | 1/21 |
Answer» A. 7/21 |
79. |
The probability of the simultaneous occurrence of two events A and B is |
A. | P(A) + P(B |
B. | P(A) + P(B) – P(A∩B |
C. | P(A) – P(B |
D. | P(A) P(B/A), P(A) ≠0 |
Answer» A. P(A) + P(B |
80. |
_________ is calculated on the basis of past experience and on experiment conducted. |
A. | Classical probability |
B. | Empirical probability |
C. | Modern approach to probability |
D. | None of the above |
Answer» B. Empirical probability |
81. |
Permutation refers to |
A. | Arrangements |
B. | Groups |
C. | Outcomes |
D. | Events |
Answer» A. Arrangements |
82. |
In probability theories, events which can never occur together are called |
A. | Dependent events |
B. | Independent events |
C. | Mutually exclusive events |
D. | Non-mutually exclusive events |
Answer» 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 |
A. | A dependent events |
B. | An independent events |
C. | Mutually exclusive events |
D. | Exhaustive cases |
Answer» 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 |
A. | Classical probability |
B. | Statistical probability |
C. | Posteriori probability |
D. | Conditional probability |
Answer» D. Conditional probability |
85. |
In a discrete probability distribution, the random variables are |
A. | Natural numbers |
B. | Whole numbers |
C. | Imaginary numbers |
D. | Rational numbers |
Answer» B. Whole numbers |
86. |
Binomial distribution is a ________ distribution. |
A. | Discrete probability |
B. | Continuous probability |
C. | Nonparametric discrete probability |
D. | None of the above |
Answer» A. Discrete probability |
87. |
The parameters involved in binomial distribution is/are |
A. | n |
B. | p and q |
C. | n, p and q |
D. | n and p |
Answer» D. n and p |
88. |
It is suitable to use binomial distribution for |
A. | Large value of ‘n’ |
B. | Small value of ‘n’ |
C. | Fractional value of ‘n’ |
D. | Any value of ‘n’ |
Answer» 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 |
A. | n |
B. | √np |
C. | np |
D. | npq |
Answer» C. np |
90. |
The variance of binomial distribution can be express as |
A. | pqr |
B. | np |
C. | npq |
D. | none of the above. |
Answer» C. npq |
91. |
The standard deviation of binomial distribution is express as |
A. | npq |
B. | √np |
C. | �𝑛𝑛𝑛𝑛𝑛𝑛 |
D. | Pq |
Answer» C. �𝑛𝑛𝑛𝑛𝑛𝑛 |
92. |
Variance of binomial distribution is maximum when |
A. | p < q |
B. | p = q |
C. | p > q |
D. | none of the above |
Answer» B. p = q |
93. |
Poisson distribution is a ________ distribution. |
A. | Discrete probability |
B. | Continuous probability |
C. | Bi-parametric discrete probability |
D. | None of the above |
Answer» A. Discrete probability |
94. |
A family of parametric distributions in which mean is equal to variance is |
A. | Binomial distribution |
B. | Poisson distribution |
C. | Normal distribution |
D. | All of the above. |
Answer» B. Poisson distribution |
95. |
Poisson distribution is |
A. | Positively skewed distribution |
B. | Negatively skewed distribution |
C. | Not skewed distribution |
D. | All of the above |
Answer» A. Positively skewed distribution |
96. |
Poisson distribution has only one parameter which is the |
A. | Mean |
B. | Variance |
C. | Standard variation |
D. | Mode |
Answer» A. Mean |
97. |
If ‘m’ is the mean of a Poisson distribution, the variance is given by |
A. | m2 |
B. | m |
C. | √m |
D. | m/2 |
Answer» B. m |
98. |
Poisson distribution with regard to peakedness is |
A. | Platykurtic |
B. | Mesokurtic |
C. | Leptokurtic |
D. | Depends on value of its parameter |
Answer» C. Leptokurtic |
99. |
The outcomes of tossing a coin five times are a variable of the type |
A. | Continuous random variable |
B. | Discrete random variable |
C. | Neither discrete nor continuous random variable |
D. | Discrete as well as continuous random variable |
Answer» B. Discrete random variable |
100. |
Which of the following is a continuous distribution |
A. | Poisson distribution |
B. | Binomial distribution |
C. | Normal distribution |
D. | All of the above |
Answer» C. Normal distribution |
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