Question # 1

The expected value of a discrete random variable is.

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Always an integer

Always one of the values that the random variable can assume

An interal of values

None of these

For the given data 2,3,7,0,-8 G.M will be.

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Negative

Positive

Zero

Impossible

Both quantities and prices are used in

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Link relatives

Chain relatives

Average of relatives

Aggregative index numbers

If a Vann diagram is drawn for events A and B which are mutually exclusive, which f the folloiwng would always be true of A and B.

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Theire parts of the rectangle will overlap

Their parts fo the rectangle will be equal in area

Their parts of the rectangle will not overlap

None of these

A hypergometric random variable is a (an)

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Independent variable

Continuous random variable

Discrete random variable

None of these

Mean deviation is always.

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Less then S.D

Equal to S.D

More than S.D

Negative

When statistics is applied in Biology then it is called:

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Econometrics

Statistical inference

Statistical biology

Biometry

The base period in fixed bases should be________

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A normal year

Abnormal year

Special

General

A four die is rolled three times. the probabiliyt of getting three area is.

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1/4

1/6

1/216

1/27

Classification is the provess of arranging data according to.

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One characteristic

Two or more characteristics

Similar characterics

Different characteristics

Commodities subject to considerable price variation should best be measured by

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Quantity index

Price index

Value index

None of thes

In a binomial distribution

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μ =σ²

μ <σ²

μ >σ²

μ = 1σ²

Mid poitn of the group. 5.5 - 7. 5 in

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6

6.5

7

7.5

In which of these cases would the mode be most useful as an indicator of central tendency.

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Every value in a data set occurs exactly once

All but three values in a data set occur once, three valeus occur 5 times each

All values in a data set occur 10 times each

Every observation in a data set has the same value.

How many possible permutations can be formed from the wood COMMITTEE.

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45360

9

6

None of them

Both binomial and hypergeometric distribution are.

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Continuous probability distribution

Discrete prbability distributions

Neither continous nor discrete probability distributions.

Bivarieate distributions.

Which of the following statements is correct.

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Every symmetrical curve is measokurtic

Standard deviation is the mean squared deviations from the mean

The standard deviation of a constant is constant

Teh second moment about zero equals variance.

If a curve can be divided into two parts that are marror images,it is called a.

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Skewed curve

Symmetrical curve

J-Shaped curve

Frequency curve

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