Question # 1

The probability of sure event is

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Zero

Negative

One

Less than one

If R_xy = - 0.84 then r_xy is

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-0.84

0.84

0.42

None of these

In normal distribution in the parameter which controls the relative flatness of the curve is:

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m

S

√2p

e

Binomial distribution has parameters:

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One

Two

Three

Four

The graph of time series is called:

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Histogram

Ogive

Straight line

Historigram

The most suitable average for index numbers is:

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Arithmetic mean

Geometric mean

Harmonic mean

Median

A disadvantage of range is that it is based on

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Absolute deviation

Squared deviations

Two extreme observation

If a and b are two constants then var (a+ bx) =

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± b var (x)

Var (a) ± var (x)

b² var (x)

(a±b) var (x)

How many types of dispersion

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2

3

4

None of these

A variable which takes measurable values is called a

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Constant

Discrete variable

Continuous variable

Qualitative variable

The correlation coefficient would be

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1.95

-1.95

0.95

None of these

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