Question # 1

The variance expresses the variability of data in ................ as unit of data.

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Square of unit

Squaare root of unit

Same unit

All of these

E(X ± Y) =..............

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E(X) + E(Y)

E(X) - E (Y)

E(x) ± E (Y)

None of these

Y₃+y₄+......+y₁₅ =

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Σ¹⁵ _i=1 Y₁

Σ¹⁵ _i=3 Y₂

¹⁵Σ_i=3 Y_i

¹⁵Σ_i=3Y_i²

In the grouped data , the range is the difference between.

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Two extreme class frequency

Two extreme class limits

Tow extreme class boundaries

None of these

The median of - 3, 0, -5 , is.

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-3

0

-5

Does not exist

Code method of calculation is only used in:

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Median

Combined mean

A.M

None of these

Binomial distribution is positive skewed when

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p > q

p = q

p < q

p = 1/2

Var (B/aX) =?

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1/aVar(X)

b²/a² Var(X)

b²/a Var(X)

None of these

In chain base method the base period is.

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Fixed

Changed

Constant

None of these

First central moment is always.

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0

1

-1

2

Which of the following distribution(s) has 3 parameters.

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Binomial distribution

Hypergeometric distribution

Both of the above

None of these

The probability of sure event is:

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0

0.5

1

Negative

Q₂ = Median

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P₂

P₂₀

P₅₀

P₇₅

Which of the followingindices satisfies both the time reversal and factor reversal tests.

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Fisher's method

Paasche's method

Laspeyres method

None of these

Which of the following is a relatie measure of dispersion.

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Standard deviation

Variance

Coefficient of variation

All of these

Theoretically best average used in the construction of composite index in

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The arithmetic mean

The geometric mean

The median

The harmonic mean

F(-∞) is always equal to.

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Zero

One

Two

Negative one

The index numbers are generally classified into ------------- types

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two

Four

five

Three

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Statistics Ics Part 1 Online Test MCQs With Answers

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