Question # 1

C= ------------------------------

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The range of a normal distribution is

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—∞ to 1

—∞ to 0

—∞ to + ∞

0 to ∞

If (1-α) is increased, the with of a confidence interval is:

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Decreased

Increased

Constant

Same

In normal distribution.

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Mean > median > mode

Mean = median = mode

Mean < median < mode

None of these

Second moment about mean is also called

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mean

variance

skewness

standard deviation

A ---------------- error is made by accepting H_o if H₁ is actually true

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type - I

type - II

type - III

type - IV

For a least squares linear trend=ŷ = a + bx, b is the

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variable

intercept

trend

slope

Super computers can process million of instructions:

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Per second

Per microsecond

Per minute

Per hour

The probability density function has ------------------ value for every value of x.

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negative

positive

minimum

maximum

A part of the population is called

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parameter

statistic

sample

both b and c

RAM is called

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primary storage

secondary storage

tertiary storage

tetra storage

Monitors, PC projectors and sound systems are

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soft copy output devices

real copy output devices

raw copy output devices

hardcopy output devices

The most common measurement unit for describing a computer's memory is

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bits

mega bytes

bytes

kilobytes

The basic components of a time series are:

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2

3

4

5

A characteristic which varies in quality form one individual to another is called

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variable

constant

attribute

none of these

The variable, that forms the basis of estimation, is called_______.

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Regression

Regressor

Regressand

Estimated

The two attribute A and B are positively associated, if _________.

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(AB) = (A)(B)/n

(AB) < (A)(B)/n

(AB) ≠ (A)(B)/n

(AB) > (A)(B)/n

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Φ²

q²

α²

β²

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