Question # 1

Statistical laws are true.

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On the average

Always

A and C

In the long run

First central moment is always.

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0

1

-1

2

CPI falls in the category of.

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A simple index

An aggregative

An inflationary index

Wholesale price index

The smallest and the largest value of data are called.

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Range

Mid point

Extreme value

Arrayed value

E(x) = Σxf(x) if it ________ absolutely.

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Equal

Converges

Discrete

None of these

Proportion is the always _________ equal to 1.

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Less then or

Always greater

Greater then or

Zero

β₁ is a quantity

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Dimensional

Dimension less

Positive

Negative

Mid poitns of top of the rectangular of historgram are joined to get.

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Frequency curve

Polygen

Ogive

Histogram

Pearson's co-efficient of skewness is positive when distribution is

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Negatively skewed

Positively skewed

Symmetrical

Leptokurtic

The distribution is measokurtic if the moment coefficient of of kurtosis b2 is.

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Equal to 0

Equal to 3

Less than 3

Greater than zero

The properties of discrete probability distribution are:

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Σp (x) = 1 and Σx. (x) = 1

ΣP (x)= 1 and Σx. P

ΣP(x) = 1 and 0 < P(x) ≤ 1

All of these above

the standard deviation is independent of.

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Change of origin

Change of scale of measurement

Change origin and scale of meaturement

None of these

The median for the data 2, 4, 6, 8, 10, 12 is

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5

8

7

10

Tossing two dice possble sampes are.

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2

6

12

36

In which distribution the successive trials are without replacement.

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Hypergometric distribution

Bionomial dristribution

Continuous distribution

None of these

The sum of the squares of deviations is the least when measured from.

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A.M

Median

Mode

Both A and B

Probability of an impossible event is

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Zero

Negative

Positive

One

If the values in a sereis are not of equal importance, we compute the.

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Median

Mean

Weighted mean

Harmonic mean

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