Question # 1

In chain base method, the base period is

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Fixed

Not Fixed

Constant

None of these

In symmetrical distribution, mean, median and mode are

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Equal

Different

Zero

None of these

Which of the following would likely be a seasonal component of a time series

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Holidays

Population growth

Law suits

None of these

If A denote that the object possesses the attribute A, thenα, means

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β

Notβ

Notα

Not A

Mean is highly affected by

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Even values

Odd values

Zero values

Extreme value

A sample statistic that is used to estimate the unknown true value of a population parameter is called

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Point estimator

Interval estimator

Testing of hypothesis

None of these

The purpose of simple linear regression analysis is to

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Replace points on a scatter diagram by a straight line

Measure the degree to which two variables are linearly associated

Predict one variable from another vaiable

None of these

If a set contains a specific number of elements then it is called

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Finite set

Infinite set

Universal set

Disjoint set

Indices that involve a group of commodities are referred to as

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Simple indices

Common indices

Aggregate indices

Relative indices

The process of dividing the objects into two mutually exclusive classes is called

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Variable

Population

Dichotomy

Frequency distribution

A set containing only one element is called

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Disjoint set

Singleton set

Universal set

Proper set

An estimator is always is

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Constant

Variable

Parameter

Statistic

A set that contains no element is called

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Null set

Singleton set

Zero set

Infinite set

For a particular test, alpha = 0.05 and beta = 0.10. The power of this test is

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0.15

0.90

0.85

0.95

Graph of time series is called

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Sector diagram

Ogive

Historigram

None of these

The sum of deviations of the value from the mean is always

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Minimum

Maximum

One

zero

A descriptive measure on the sample observation is called

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Statistics

Statistic

Survey

None of these

In the study of two attributes, (B) =

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(Aβ) + (αB)

(AB) + (Aβ)

(B) + (β)

(AB) + (αβ)

The results obtained by rolling a die, is an example of

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Infinite population

Finite population

Option A & B

None of these

Selecting a representative sample from a given population called

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Finite population

Sampling

Infinite population

None of these

Computer means

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Complete

Processing

Data

Calculate

Probaility of an event cannot be

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Positive

One

Negative

None of these

The shape of binomial distribution depends upon the value of its

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Constants

Parameters

Variables

Integers

Sum of absolute deviations are minimum if computed from

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Mean

Median

Mode

Range

A discrete variable is also known as

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Continuous

Discontinuous

Random Variable

Deviation

The simplest form of the continuous distribution is the

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Discrete uniform distribution

Probability mass function

Density function

Continuous uniform distribution

If the correlation coefficient r = 0, the two regression lines are

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Parallel

Perpendicular

Coincident

Inclined at 45°to each other

The most frequent value in a data set is called

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Mean

Median

Mode

Quartile

G.M becomes zero if any of the observation is

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zero

1

similar

Opposite

When a pair of dice is rolled, the sample space consists of

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6 outcomes

36 outcomes

12 outcomes

24 outcomes

The positive square root of the variance is refered to as the

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Mean deviation

Quartile deviation

Standard deviation

Range

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