Question # 1

An after Eid sale in store is an example of

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Secular trend

Attributes

Constants

None of those

Movement in secular trend

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Smooth

Steady

Regular

All

A graph of a cumulative frequency distribution is called:

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Frequency curve

Frequency polygon

Ogive

Histogram

In chain base method,the base period is:

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Fixed

Changed

Constant

None of these

How many types of dispersion

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2

3

4

None of these

The shape of the C² distribution is

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Symmetrical

Negatively skewed

Positively skewed

Mesokurtic

In the tossing of two perfect coins to probability at least one head occur is:

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2/2

1/4

3/4

1

The sum of deviations from arithmetic mean is:

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0

5

a

1

If E (X) = 1.6 and E (Y) = 0.4, then E (X - Y) =--------------

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1.2

-0.2

2.0

None of these

If 'c' is a non-random variable then E(c) is:

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Zero

C

Two

None of these

Weight of earth is:

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Discrete Variable

Continuous Variable

Qualitative variable

Difficult to tell)

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