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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