Question # 1

In which of these cases would the mode be most useful as an indicator of central tendency.

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Every value in a data set occurs exactly once

All but three values in a data set occur once, three valeus occur 5 times each

All values in a data set occur 10 times each

Every observation in a data set has the same value.

For a constant k, the variance of k is

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zero

k²

k

none of these

Which of the following methods uses quantities consumed in the base period when computing a weighted index.

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Laspeyree'method

Paasche's method

Fisher's method

None of these

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

N-K is classified as

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Success

Failures

Parameters

Range

The foot note are usually indicated by.

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(.............)

(***)

(------)

(____)

If N = 40, n = 5, k = 4, then mean of hypergeometic distribution is.

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1

1/2

1/4

1/3

When a distribution is symmetrical and has one mode, the highest point on the curve is called the.

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Mode

Median

Mean

All of these

The numebr 143.9500 rounded off to nearest tenth is.

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143.9

144.0

143.0

144

Teh range of the value -2, -4, -6 and -8 is.

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-6

6

-10

-4

For a moderately skewed dsitribution, whihc of the following emprical formula holds.

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M.D. = 4/5(S.D)

Q.D. = 2/3 (S.D)

Q.D . = 5/6 (M.D.)

All of these

Which is the most suitabel average in chain base method.

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Arithemetic mean

Median

Geometric mean

Weighted arithmetic mean

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

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two

Four

five

Three

Quartile Co-efficient of skewness is also called as

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Median co-efficent of skewness

Pearson's 1st co-efficient of skewness

Pearson's 2nd co-efficient of skewness

None of these

A numerical characteristics of a sample is called.

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Parameter

Variable

Sample

Statistics

The mena is affected by

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Change of origin

Scale of measurement

Both a and b

None of these

The probability of continuous random variable at x = a is__________.

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One

Zero

Between

More then one

A collection of some of the elements from a group is called.

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Census

Population

Registration

Sample

How many basic types of index numbers.

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2

3

4

5

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