Question # 1

For a symmetrical distribution:

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b₁ = 0

b₁ = 3

b₂ = 3

b₃ = 3

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

A misfit person is not selected for the job

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Nor error

Type I error

Type II error

Sampling error

If critical region is located on both sides it is called

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One tailed test

One sided test

Two tailed test

Not exists

If y = 5x +10 and x is N(10,25) then mean of y is:

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50

60

70

135

The index numbers calculated by considering the relative importance of variables are called:

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Un-weighted

Weighted

Simple

None

The first moment about origin is equal to:

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Variance

Mode

Mean

Standard deviation

Mean deviation is least when deviations are taken from:

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Mean

Median

Mode

H.M

A perfect positive correlation is signified by

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0

-1

+1

-1 to +1

The probability of an impossible event is equal to:

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Zero

One

0.5

None of these

P or q cannot be greater than:

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1

0

2/3

1/2

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NAT I General Science Statistics MCQs With Answers

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