statistics MCQs – Page 50

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 Review each marked answer and report any item that may be outdated or unclear.

981. Median = Q2 = D5 =_________________?
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A. P25

B. P55

C. p50

D. P75
982. H.M. _____ G.M. _______ A.M?
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A. ?

B. >

C.

D. ?

983. If any value in the data is zero, then it is not possible to have _______?
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A. A.M.

B. Medain

C. Mode

D. H.M.
984. The most frequent value in data is called ________________?
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A. H.M.

B. Median

C. Mean

D. Mode
985. Median is always central value even if the data is _______?
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A. Discrete

B. Continuous

C. Arranged

D. Unassigned

986. In moderately skewed distribution if _________________?
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A. Median = 2 median-3 mean

B. Mean- mode

C. Mode = 3 median 2 mean

D. Mode = 2 median -3 mean

987. Arithmetic mean is _________ by change of origin and scale of measurement?
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A. Affected

B. Vary

C. Negative

D. Not affected

988. G.M. of 2,4,8 is ______?
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A. 8

B. 4

C. 14/3

D. 6

989. The Harmonic Mean of two number is a and b is given by ____________?
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A. None of these

B. a+b/2

C. 2ab/a+b

D. ?ab

990. Whats the largest known Prime Number?
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A. 282,589,933 ? 3

B. None of these

C. 282,589,933 ? 1

D. 282,589,933 ? 5

991. Which hypothesis tell us weather test is one tail or 2 tail?
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A. all of the above

B. simple hypothesis

C. null hypothesis

D. None of these

992. In the plural sense, statistic means____________?
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A. Meteorology

B. Science

C. Data

D. Methods

993. Which of the following statement is not true?
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A. All of these

B. SE cannot be zero

C. SE cannot be one

D. SE cannot be negative

994. The term variance introduced by ___________?
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A. Karl Pearson

B. Ronald Fisher

C. None of these

D. John Tukey

995. The data obtained very first are called:___________?
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A. Secondary data

B. Raw data

C. None of these

D. Primary data
996. If any statistical tool apply on primary data it becomes a__________?
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A. Raw data

B. None of these

C. Primary data

D. Secondary data
997. Who give the concept of standard deviation and CV?
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A. John Tukey

B. All of the above

C. Karl Pearson

D. R.A Fisher

998. Which of the following Measure of Averages is not based on all the values given in the data set?
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A. Arithmetic Mean

B. Geometric Mean

C. Median

D. Mode

E. Both C. and D.
999. The measure of dispersion is changed by a change of_____________?
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A. Scale

B. Origin

C. None

D. Algebraic Signs

1000. In descriptive statistics, we study:
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A. How to describe the probability distribution

B. The description of decision making process

C. The methods for organizing, displaying, and describing data

D. None of the above