Question # 1

1 MB equals _________byes

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1,094,265

1,904,265

1,048.576

The regression equation always passes throught_________.

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(X, Y)

(X, y̅)

(X̅, Y)

(X̅, y̅)

P(μ-2σ < X=< μ + 2σ)=

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0.6827

0.9545

0.9973

0.9827

Which error is occurred when the defendant were found guilty if, infect the defendant is innocent

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type-I

type-II

no error

both a and b

A binary digit is commonly called:

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Byte

Kilobyte

Gigabyte

Bit

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Φ²

q²

α²

β²

If the population is finite, the standard error of mean is given by:

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σ/√n

σ/√n √N - n/ N-1

σ/√n √N -1/N-n

σ/√ √1 - n /N

The unsystematic sequence which follows irregular pattern of variations is called:

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Noise

Signal

Linear

Non-linear

A relationship where the flow of the data points is best represented by a curve is called_______.

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Linear positive

Linear negative

Linear relationship

Nonlinear relatiobship

CD-ROM is a type of _________.

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Optical disk

Hard disk

Soft disk

Compact disk

A region for which the H_o is rejected is called

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acceptance region

rejection region

critical region

both b and c

The normal distribution is --------------------distribution.

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positively skewed

negatively skewed

symmetrical

peaked

The additive model of the time series is:

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Y = T + S + C + I

TSCI

Y = a + bX

Y = a + bX + cX²

All odd order moments about mean are

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unique

zero

different

one

The power of the test is equal to:

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α

1 - α

β

1 - β

The total area under the curve of chi-square distribution is_______.

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1

0.5

0 to ∞

-∞ to +∞

The bias increases by increasing the sample_______.

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Unit

Number

Size

None of these

The graph of time series is called:

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Histogram

Historigram

Straight line

Ogive

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