Question # 1

The geometric mean of the values 2,4,-3,8 is:

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4

-3

Zero

None of these

The properties of hypergeometric experiment are:

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Three

Four

Five

One

If R_xy = - 0.84 then r_xy is

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-0.84

0.84

0.42

None of these

Variance of b,b,b,b is:

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b

4b

Zero

None of these

Var (2x + 3) is:

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5 var (x)

4 Var (x)

4 Var (x) +3

4 Var (x) +9

Probability of an event always lies between

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-1 and +1

-1 and 0

0 and 1

0 and ∞

In the regression equation x =a + by then called

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Independent variable

Dependent variable

Quantitative variable

Continuous variable

The graph of time series is called

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Histogram

Historigram

Polygon

None of these

An arrangement of data to show the frequency of occurrence is called

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Frequency distribution

Probability distribution

Data array

Cumulative distribution

A complete list of elements in a population is called

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Population

Sampling design

Sampling frame

Sampling Unit

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

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Simple

Weighted

Un-weighted

Cost of living

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NAT I General Science Statistics MCQs With Answers

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