Question # 1

Var (2x + 3) is

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5 var (x)

12 var (x)

4 Var (x)

None of these

Movement in secular trend

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Smooth

Steady

Regular

All

For the standardized normal variate P(0Σ z Σ1) =...............

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0.34135

0.47725

0.49867

0.33725

The shape of the C² distribution is

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Symmetrical

Negatively skewed

Positively skewed

Mesokurtic

Standard deviation is calculated from harmonic mean:

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Always

Never

Often

None of them

In which sense Statistics means numerical data:

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Singular

Plural

Both

None of these

Link relatives can be obtained by dividing P_n by:

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P_o

q_o

P_n

P_n-1

The value of correlation co-efficient lies between

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0 to +1

-1 to 0

-0.5 to +0.5

-1 to +1

If var (x) =5, var(y) =10, then var (2x + y) is:

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10

15

30

25

The complete list of all sampling units

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Sample

Sampling frame

Sample design

Sampling error

Variance of b,b,b,b is:

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b

4b

Zero

None of these

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NAT I General Science Statistics MCQs With Answers

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