Question # 1

If P(A) = 0.7,P(B) = 0.5,A and B are independent then P(A C B) =

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0.35

1.2

0.85

None of these

A specific value calculated from sample is called

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Estimator

Estimate

Estimation

Bias

Which index number may be weighted?

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Simple

Compositive

Both a and b

Fisher

Link relatives can be obtained by dividing P_n by:

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P_o

q_o

P_n

P_n-1

Var (2x + 3) is:

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5 var (x)

4 Var (x)

4 Var (x) +3

4 Var (x) +9

The range of constant "A" is equal to

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Zero

A

One

None of these

P_n/ P_n-1 100 is equal to:

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Price relative

Chain indices

Link relative

None of these

If 1- a = 0.90, then value of Z_a/2 is

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1.645

1.96

2.33

2.575

In binomial distribution:

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Mean = variance

Mean > variace

Mean < variance

Zero

In Mesokurtic distribustion

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m₄ < 3s⁴

m₄ = 3s⁴

m₄ ¹ 3s⁴

m₄ > 3s⁴

A disadvantage of range is that it is based on

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Absolute deviation

Squared deviations

Two extreme observation

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NAT I General Science Statistics MCQs With Answers

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