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NAT I General Science Statistics MCQs With Answers

Question # 1

Variance remains unchanged by change of:

Choose an answer

Origin

Scale

Both

None of them

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Question # 2

Number of ways a committee of 3 members can be selected from 5 members of a club is

Choose an answer

120

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Question # 3

Which index number has a wide scope:

Choose an answer

Special

General

Price

Quantity

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Question # 4

In symmetrical distribution if Q₁ = 4, Q₃ = 12 then median is

Choose an answer

Zero

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Question # 5

The difference of the true value of parameter and corresponding value of sample is called

Choose an answer

Non-sampling error

Sampling error

Random error

None of these

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Question # 6

Basic year weighted index numbers are:

Choose an answer

Laspeyre's

Paasche's

Fisher's

None of these

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Question # 7

If all the values are of equal importance then index numbers are called:

Choose an answer

Simple

Weighted

Un-weighted

Cost of living

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Question # 8

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

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-1

Fractional

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Question # 9

Variance of b,b,b,b is:

Choose an answer

Zero

None of these

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