statistics MCQs – Page 4

Practise multiple-choice questions from statistics for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

statistics Mcqs

1. sample linear regression 2. normal distribution 3. presentation of data 4. statistical inference 5. measures of location 6. basic statistics 7. correlation and regression 8. sampling 9. binomial and hyper geometric probability 10. index number 11. hypothesis testing 12. measures of dispersion

61. Mean Deviation, Variance and Standard Deviation of the values 4, 4, 4, 4, 4, 4 is_________________?
0

A. 8

B. 12

C. 2

D. 0

E. 4

62. The mathematical exception of x + y is equal to ________________?
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A. E(x) + E(y)

B. E(x + x)

C. E(y)

D. E(x + 0)

63. Eyes color of employees is the example of____________?
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A. Attribute

B. Constant variable

C. Discrete variable

D. Continuous variable

64. N n/N -1 is called ___________ population?
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A. Group

B. Un-finite

C. Finite

D. Correction

65. A fair coin toss the total events in sample space equal_____________?
0

A. 36

B. 16

C. 6

D. 7

66. If E(x) is the expected value of X then E[x E(x)]= ___________________?
0

A. 0

B. E(X) 0

C. E(x) E(x)

D. E(x) + E(x)

67. The calculation of mean and variance is based on______________?
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A. All values

B. Large values only

C. Small values only

D. Extreme values only

68. Which of these is a relative measure of dispersion_____________?
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A. Standard Deviation

B. Variance

C. Coefficient of Variation

D. None of these

69. The special rule of multiplication of probability, the events must be ______________?
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A. Empirical

B. Bayesian

C. Independent

D. Mutually exclusive

70. If (AB) >(A) (B)/n __________ then A and B are?
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A. Associated

B. Dis-associated

C. Independent

D. None of these

71. The mean of 10 numbers is 9, then sum of these numbers will be__________________?
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A. 9

B. 0.9

C. 70

D. 90

72. Correlation coefficient is _________ of origin and unit of measurement?
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A. Independence

B. Origin

C. None

D. Dependence

73. Data regarding opinions of consumers about some product obtained through lady workers are ____________?
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A. Secondary

B. Cheapest method

C. Existing Sources

D. Primary

74. Which branch of statistics deals with the techniques that are used to organize, summarize, and present the data?
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A. Advanced Statistics

B. Descriptive Statistics

C. Inferential Statistics

D. Bayesian Statistics

E. Probability Statistics

75. If a & b are constants, then Var (a + bX) equal to_________________?
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A. None of these

B. b2 Var(X)

C. b Var(x)

D. Var(bX) + a

76. If in a coin P(H) = 2P(T) then prob. of head is ______________?
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A. 2-Jan

B. 0

C. 2/3

D. 3-Jan

77. A sampling distribution is the probability distribution for which one of the following___________?
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A. A population

B. A sample statistic

C. A population parameter

D. A sample

78. A?B means:_______________?
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A. None of these

B. The elements of A and B

C. The elements of A or B

D. The elements A but not of B

79. A function probability that a random variable of x has a value less than is called _____________?
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A. Distribution function

B. Random function

C. probability function

D. Continuous function

80. (A ? C) is a frequency of attributes of order_______________?
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B. -2

C. 3

D. 1

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