Question # 1

The most popular measure of dispersion in industry and meteorology is.

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Range

Quartile deviation

Mean deviation

Standard deviation

If (E(X) = E than find arithmetic means will be.

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1

4

0

8

Probability of an impossible event is

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Zero

Negative

Positive

One

If an unweighed average of revalives index pn/po x 100 is calculated for each product in the compostive, what is then done with these values to finish the calculation.

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The values are multiplied together.

The largest values is found

The valeus are averaged

None of them

Weight of whole earth is.

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Discrete variables

Qualitative variable

Constant

Continuous variable

Its value cannot be exactly examined.

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Ranodm variable

Fixed varaible

Mathematical variable

Variable

Events with equal probabilities are called.

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Mutually exclusive events

Exhauative events

Eqauily likely events

Simple events

Primary data are same:

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Group

Ungroup

Random

None of these

In a skewed distribution the three averages man, median & mode are.

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identical

different

0

equal 1

In a binomial expreiment with three trials, the variable can take.

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2 Values

3 Values

4 Values

5 Values

Continuous data are differentiated from discrete data in that.

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Discrete data classes are represented by fractions

Continuous data classes may be represented by fractions

Continuous data take on only whole numbers

Discrete data can take on any real number

There sets on a sofa can be occupied by four persons in.

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12 ways

7 ways

24 ways

None of these

Binomial distribution is used when n is

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Large

Small

Negative

Zero

Index for base period is always take as.

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zero

one

200

100

If we went to compare the prices of wheat then we have to compute.

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Price index number

Quantity index number

Volume index number

Both B and C

β is a letter

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German

Greek

Latin

Dutch

a graph of a cumulative frequency distribution is called.

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Histogram

Ogive

Frequecny polygon

None of thesse

The probability of a 'Jack' Card form 52 playing card is:

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1/52

4/52

13/52

26/52

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