Question # 1

Which is the followig measures cannot be calculated for the numbers 5,8, 12,6, 9, 13, 10

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Median

Mean

Mode

None of these

Total angle of pie-chart is.

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270 ^o

300^o

320^o

360^o

The index number given by formula Σp_nq_n/Σp_nq_n x100 is:

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Laspeyres index

The paasche's index

The value index

None of these

The repeated trials of binomial experiments are

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Dependent

Independent

Fixed

Variable

Information recorded in its original form, whether counts or measurements in referred to as.

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Continuous data

Raw data

Discrete data

Arrayed data

Third quartile Q₃ =

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P₃₃

D₃

Median

None of these

In a bionomial, n = 20, p = 3/5, then variance of this distribution is.

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12

60

4.8

0

Which measure of disperesion is considered as the best genereal purpose measure of dispersion.

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Range

Semi interquartile range

Standard deviation

Mean deviation

The probabilyt density function p (x) cannot exced.

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zero

One

Mean

Infinity

The word statistic was used first time by:

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Yule

Gottifried Achenwall

E.A.W Zimmermann

Baron

Both quantities and prices are used in:

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Link relatives

Chain relatives

Average of relatives

Aggregative index number

If x is a random variable with E(x) = 5 then E(3x - 2) =

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0

1

13

All of them

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

If a player well shuffles the pack of 52 playing card, then the probability of a black card form 52 playing cards is:

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1/52

13/52

26/52

4/52

The probability distribution of discrete random variable is called is

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Frequency distribution

Probability distribution

Probability mass function

Both (a) and (b)

A binomial random variable is a (an)

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Constinuous random variable

Discrete random variable

Dependent varaible

Independent variable

The weights used in a quantity index are

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Percentage of total quantity

Prices

Average of quantities

None of these

If X and Y are independent random variables , the E (XY) is equal to.

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E(XY)

E(X) E(Y)

XE(Y)

YE(X)

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