Statistics MCQs

734 MCQs  (Page 22 of 74)

Attempt Statistics Mcqs Quiz
For Mesokurtic curve of the distribution, β2 is__________________?
A. Zero
B. 3
C. 3
E. None of these
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______________is based on all observations of data?
A. Median
B. Mode
C. Mean
D. None of these
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Second moment about mean is_______________?
A. Standard deviation
B. Variance
C. Coefficient of variation
D. None of these
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The Coefficient of Skewness is always zero for ____________ distribution?
A. Symmetrical
B. Skewed
C. All of above
D. None of these
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In uni-model distribution, if mode is less than mean_______________?
A. Symmetrical
B. Normal
C. Positively skewed
D. Negatively skewed
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If all values are same then the measure of dispersion will be________________?
A. 1
B. 0
C. Mean
D. Mode
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_____________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
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Standard deviation is calculated from the Harmonic Mean (HM) ________________?
A. Always
B. Sometimes
C. Never
D. None of these
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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)−−−−−−−−−−−−−−−√
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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
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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