Question # 1

A copntinuous probability distribution may be represented by.

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A table

a graph

A mathmethical equation

Botha b and c

A relative frequency distribution presents frequencies in terms of

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Fractions

Whole numbers

Percentages

Both a and c but not b

Probability of an impossible event is

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Zero

Negative

Positive

One

The median divides the data into------------ equal parts

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One

Two

Three

Four

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

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Negatively skewed

Positively skewed

Symmetrical

Leptokurtic

The mean is based on.

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Small values

Extreme values

All the values

Large values

Var (KY) = ......................

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KY

K² Var(Y)

K²Var (Y)

None of these

Binomial distribution is positively skewed

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P < 1/2

P > 1/2

P = 1/2

P < q < ¹/₂

Primary data are same:

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Group

Ungroup

Random

None of these

The volume or quantity of goods are compared by

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Price index numbers

Relative index numbers

Volume index numbers

Paasche's index

First central moment is always.

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0

1

-1

2

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 variance of binomial distribution is

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np

nq

npq

pq

The positive square root of the mean of the squares of deviations of values from their mean is

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Variance

Covariance

Standard deviation

Standard error

Statistical laws are true.

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On the average

Always

A and C

In the long run

The probability of success ------------ from one trial to another when trials are dependent

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Remains constant

Is changed

One

Zero

The weights used in a quantity index are

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Percentage of total quantity

Prices

Average of quantities

None of these

Coefficient of variation (C.V) is given below

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Mean /S.D x10

Mean/S.D x 100

S.D/Mean x 100

S.D/ Mean

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