Question # 1

Keyboard mouse and scanner are the ........devices

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Input

Output

Logical

None of these

In moving average method we can't find trend values of some

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Middle period

Starting and can periods

End periods

Starting periods

In constructing a Histogram if the class interval size of one class is double than others then freq of that class should be:

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Doubled

Half

Quarter

One

If P(A) = 0.3, P(B) = 0.8, P(A C B)= 0.24, then the events A & B are

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Mutually exclusive

Equally likely

Independent

Not independent

The probability of drawing one green ball from a bag containing 6 red,8 black 10 yellow and one green ball is

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1/25

0

4/13

15/20

The standard deviation of any sampling distn is called

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Sampling error

Non-sampling error

Standard error

Type 1 error

In symmetrical distribution the values of mean median and mode

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Zero

Coincide

Do not coincide

None of these

A binomial random variable can assume only the values

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1,2,3.........n

0,1,2............y

0,1,2...........n

None of these

The model letter of the word statistics is:

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S

T

S & T

I

The complete list of all sampling units

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Sample

Sampling frame

Sample design

Sampling error

Current year weighted are used as

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Laspeyr's index number

Paasch's index number

Fisher ideal index number

None of these

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NAT I General Science Statistics MCQs With Answers

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