Question # 1

Standard deviation is always calculate form:

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Mean

Median

Mode

All of the above

A quantity calculated from a population is called.

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Frequency

Statitics

Parameter

Sample

The probability of getting one red ball from a bag constaining 4 red, 3 white and 3 black balls is.

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3/10

1/5

2/5

1/2

If Laspeyres index = 104.5, Paasche's index = 107.9, then, Fisher's ideal index is equal to:

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100

104.1

106.2

110.2

Any study in which the scientist can control the allocation of treatments to the experimental units is called.

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Trial

Analysis

Experiment

Survery

If 'a' is a constant, then 5/2 a is equal to.

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a1 + a2+ a3+ a4+ a5

a

52

None

When X denotes the number of success in binomial experiment, it is called.

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Random variable

Binomial random variable

Continuous random variable

Both (B) and (C) but not (A)

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 procedure of inferring about the population characteristic using the sample is called________.

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Descriptive statistic

Inferenitial statistics

Statistic

Science

For symmetrical distribution mega 3 is.

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zero

1

2

3

The probabilyt that a continous random varaibe 'x ' takes on specific value of x is.

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Greater thaan zero

Less than zero

Equal to Zero

0 to 1

The variance expresses the variability of data in ................ as unit of data.

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Square of unit

Squaare root of unit

Same unit

All of these

If a is a constant then E(a) is equal to

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a

Square of a

Zero

2a

Which of the following methods uses quantities consumed in the current period when computing a weighted index.

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Laspeyres' method

Paache's method

Fisher's method

Marshall -Edge worth's method

Probability of an impossible event is

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Zero

Negative

Positive

One

test2

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3

4

2

In hypergeometric distribution, the successive trials are.

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Dependent

Independent

Both (A) & (B)

None of these

Geometric mean is a suitable average in ______ method.

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Price index

Chanin bases

Quantity index

Index mean

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