Question # 1

If Y = -5 -8x and S.D.(X) =3,then S,D (Y) =

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24

8

5

-24

In a 2 x 2 contingency table degrees of freedom is:

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4

2

1

8

Now a days the word statistics can be expressed in how many ways?

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2

3

5

4

First moment about mean is always:

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Zero

1

Negative

None of these

Which is correct regarding the normal distribution

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b₁ = 3

b₂ = 0

Q.D = 0.7979 S

Q1 = m 0.6745S

If the two variables are uncorrelated then the value of "r" is

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-1

0

F1

Fractional

The alternative hypothesis always contains the sign of

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Equality

Inequality

Ratio

Proportion

The most suitable average for index numbers is:

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Arithmetic mean

Geometric mean

Harmonic mean

Median

An after Eid sale in store is an example of

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Secular trend

Attributes

Constants

None of those

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NAT I General Science Statistics MCQs With Answers

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