Statistics is a section of mathematics that manages the collection, interpretation, analysis and presentation of different numerical data. In other words, Statistics is a collection of quantitative data. Academic task offering 2000+ Statistics MCQs for the preparation of different schools, colleges, and universities examinations to get good marks. Solved statistics question and answer cover multiple topics such as basic statistics mcqs, sampling mcqs, probability mcqs, Probability distributions, correlation and regression analysis, sampling distributions Techniques, statistical inference, time-series analysis, data presentation mcqs, statistical software mcqs, index numbers mcqs, design of experiments mcqs, statistical quality control, random variables mcqs, Non-Parametric statistics mcqs – and much more. These statistic multiple choice questions are also helpful for the preparation of various interviews, entrance examinations, other competitive examinations, and jobs like PPSC Statistics Lecturer’s jobs, Statistical Officers, Data Entry Operator, etc. for all Experienced, Freshers and Students. Also, check MCQs on Agriculture here.
101. _____________is used to compare the variation or dispersion in two or more sets of data even though they are measured in different units?
A. Range
B. Standard Deviation
C. Coefficient of Variation
D. Mean Deviation
102. Second moment about mean is_______________?
A. Standard Deviation
B. Variance
C. Coefficient of Variation
D. None of these
103. The Coefficient of Skewness is always zero for ____________ distribution?
A. Symmetrical
B. Skewed
C. All of above
D. None of these
104. In uni-model distribution, if mode is less than mean_______________?
A. Symmetrical
B. Normal
C. Positively Skewed
D. Negatively Skewed
105. For Mesokurtic curve of the distribution, β2 is__________________?
A. Zero
B. 3
C. 3
106. If a and b are two constants, then Var(a+bX) is_______________?
A. a±bVar(X)
B. Var(a)±Var(X)
C. ±bVar(X)
D. b2Var(X)
E. (a±b)Var(X)
107. Standard deviation is calculated from the Harmonic Mean (HM) ________________?
A. Always
B. Sometimes
C. Never
D. None of these
108. If X and Y are independent then SD (X − Y) is________________?
A. SD(X)−SD(Y)
B. SD(X)+SD(Y)
C. SD(X)+SD(Y)−−−−−−−−−−−−−−√
D. Var(X)+Var(Y)−−−−−−−−−−−−−−−√
18) If Y=−8X − 5 and SD of X is 3, then SD of Y is
109. If the standard deviation of the values 2, 4, 6, 8 is 2.58, then the standard deviation of the values 4, 6, 8, 10 is_______________?
A. 0
B. 2.58
C. 5
D. 4.66
E. 2.33
110. If all values are same then the measure of dispersion will be________________?
A. 1
B. 0
C. Mean
D. Mode
E. Median