Question # 1

CD-ROM is a type of

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hard disk

soft disk

floppy disk

optical disk

The degree of relationship between the two attributes is called

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regressor

correlation

regressand

association

A specific value of an estimator computed from the sample data is called

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estimation

estimate

interval estimate

point estimate

Super computers can process million of instructions:

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Per second

Per microsecond

Per minute

Per hour

The measures of strength of closeness of linear relationship between two variables is called

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simple linear regression

composite linear regression

simple linear correlation

composite linear correlation

The hypothesis which is tested for possible rejection is called

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common hypothesis

null hypothesis

alternative hypothesis

wrong hypothesis

n = (A) + --------------------

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(B)

(α)

(β)

(A)

The choice of one-tailed test and two tailed test depends upon:

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Composite hypothesis

Null hypothesis

Alternative hypothesis

Simple hypothesis

The values of test statistic which separate the rejection and non rejection regions for the test are called

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simple values

critical values

parametric values

none of these

Points of inflexion of normal curve are at

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μ and σ

x=μ-σ and x=μ+σ

μ and 2σ

μ = o

Arithmetic operations are carried out by_______ units:

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CPU

RAM

ALU

ROM

When the expected frequencies are very small the value of=χ2has been

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adjusted

omitted

changed

all of these

Probability distribution of a statistic is called:

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Sampling

Parameter

Data

Sampling distribution

Second moment about mean is also called

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mean

variance

skewness

standard deviation

In case of symmetrical distribution

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μ₁ = μ₂ = μ₃ = μ₄

β₁ = β₂

P₁ < P₂

Screen output is considered as a _________.

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Hardcopy

Softcopy

Input

Software

The first commercially available computer was:

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ENIAC

UNIVAC

Mark I

Analytical engine

A business cycle has

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one phase

two phases

three phases

four phases

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