statistics MCQs – Page 32

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 Review each marked answer and report any item that may be outdated or unclear.

621. The maximum of function is at_______________?
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A. X =

B. X = 0

C. X = ?2

D. X = + ?

622. Class interval size is the different between the upper and lower class_________ of a class?
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A. Marks

B. Limits

C. Class Interval

D. Boundary
623. Reason behind probability of (alpha +beta)is not equal 1?
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A. Change distribution

B. None of theseSize of beta

C. Size of n

D. Size of alpha

624. When in hypothesis testing (alpha) increases (1-beta)?
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A. Increases

B. Decrease

C. Equal

D. None of these

625. In a certain normal distribution having = 35 and variance = 16, then mode will be_______________?
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A. 16

B. 3.5

C. None of these

D. 4

626. A ________ is a heading at the top of the table describing its contents?
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A. Title

B. Head note

C. Sub note

D. Footnote

627. In hypothesis testing probability of (alpha +beta) =1?
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A. No

B. Increase

C. Decrease

D. Yes

628. In a standard normal distribution z = 0 corresponds to _____________?
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A. M.D.

B. S.D.

C. Q.D.

D. Mean
629. A table has at least __________ part?
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A. Four

B. Five

C. Two

D. Three

630. Deciles means are 1/( )?
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A. 1000

B. 100

C. 10

D. 10000

631. The dependent variable also called_________?
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A. Response

B. All of above

C. Predicted

D. Regressand

632. The Harmonic Mean of two number is a and b is given by ____________?
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A. a+b/2

B. ?ab

C. 2ab/a+b

D. None of these

633. Which sampling procedure we prefer if population is heterogenous?
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A. Stratified sampling

B. Simple random sampling

C. Cluster sampling

D. None of these

634. Total Area under the normal curve is_______________?
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A. 0

B. None

C. Greater than 1

D. Less than 1

E. 1
635. A graph of cumulative frequency distribution is called ________________?
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A. None of above

B. Frequency Polgon

C. Ogive

D. Histrogram

636. Normal distribution has ______ parameter?
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A. Four

B. Two

C. Three

D. One

637. Every distribution tends to ____ distribution?
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A. Small

B. ?

C. Finite

D. Large
638. Normal distribution is the distribution of _______________?
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A. Continuous r.v.

B. Discrete r.v.

C. Qualitative variable

D. Quantitative variable

639. Area Under the normal curve on either side of mean is _____________?
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A. 0.5

B. -1

C. Mean value

D. 2

E. 1

640. If ?1 = 0 it means the distribution is _______________?
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A. Symmetrical

B. #NAME?

C. Non of these

D. #NAME?