Question # 1

The lack of uniformity is called

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Skewness

Symmetry

Kurtosis

Dispersion

The sum of deviations from arithmetic mean is:

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0

5

a

1

E(X - μ)² =

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^Zero

S,D

Variance

Mean deviation

Graph of times series is called

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Pie diagram

Scatter diagram

Histogram

Historigram

The first moment about origin is equal to:

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Variance

Mode

Mean

Standard deviation

The experiment means a well define:

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Action

Outcome

Sample space

None of these

A variable which takes measurable values is called a

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Constant

Discrete variable

Continuous variable

Qualitative variable

By decreasing ×̅ the length of confidence interval for m

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Increases

Decreases

No effect

None of these

Components of time series are

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Four

Three

Two

One

Probability distribution of a statistic is called

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Sampling error

Sampling distribution

Standard error

Parameter

In symmetrical distribution the values of mean median and mode

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Zero

Coincide

Do not coincide

None of these

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NAT I General Science Statistics MCQs With Answers

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