Question # 1

Q₂ = Median

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P₂

P₂₀

P₅₀

P₇₅

Teh suitable average for the qualitative data is.

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Mean

Mode

weighted mean

Geometric mean

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

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-3

0

-5

Does not exist

Which one of the following is not effected by extreme values

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mean

median

mode

both (a) and (b)

Fora a positively skewed distribution.

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Mean > Mode

Mode > Mean

Median > Mean

None of these

When referring to a curve that tails off to the left end, you would callit.

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Symmetrical

Skewed to the right

Positively skewed

None of these

For a certain distribution if Σ(x -10) = 5, Σ(x -20) =18 & Σ(x -15) = 0 then the value of Σ is.

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10

15

20

25

The median divides the data into

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Two halves

Four quarters

Single unit

Six parts

Code method of calculation is only used in:

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Median

Combined mean

A.M

None of these

If X = 0,2,2,4,8,10, then G.M is.

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4

8

10

zero

Which of the following is not based upon all the observations.

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A.M

G.M

H.M

Mode

The estimate of population means is represented by

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μ

Ψ

For moderately positively skewed distribution the following relation hold

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Mean > median > mode

Mean=median=mode

Mean < median< mode

None of these

The sum of squared deviation is minimum, when deviation are taken form

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Mean

Median

Mode

None of these

Which is appropriate averege for finding the average speed of a journey.

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Mean

Geometric mean

Harmonic mean

Weighted mean

Which pair of measures cannot be calculated when one of numbers in the seriesis zero.

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G.M and A.M

G.M and H.M

H.M and A.M

None of these

The sum of square of deviations of the observations from their mean is

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Minimum

Maximum

Zero

None of these

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