Question # 1

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If E(q̂) = q then q̂ is called

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Biased estimator

Unbiased estimator

Positively biased

Negatively biased

The sum of deviations from arithmetic mean is:

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0

5

a

1

The lack of uniformity is called

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Skewness

Symmetry

Kurtosis

Dispersion

The median of A,S,S,O,C,I,A,T,E is:

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S

O

I

None of them

E |X- M| =

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Zero

Mean deviation

S.D

Variance

Which index number may be weighted?

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Simple

Compositive

Both a and b

Fisher

How many basic types of index numbers are?

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2

3

5

4

A misfit person is not selected for the job

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Nor error

Type I error

Type II error

Sampling error

A graph of a cumulative frequency distribution is called:

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Frequency curve

Frequency polygon

Ogive

Histogram

The variance of 5,5,5,5,5,is

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0

25

5

125

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