Question # 1

Commodities subject to considerable price variation should best be measured by

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Quantity index

Price index

Value index

None of thes

Classification of data according to locations or areas is called.

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Temporal classification

Geographical classification

Qualitative classification

Quantitative classification

Why is it necessary to square the difference from the mean when computing the standard deviation.

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So that the extreme values will not affect the calculation

Some of the differnece will be positive and some will e negative

It can change drastically from one data set to the next

It is determined by only two points in the data set

When we draw the sample with replacement (the first sample is replaced before the next draw), the probability distribution to be used is:

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Binomial

Hypergeometric

Both Binomial & hypergeometric

None of these

In case of positively skewed distribution the extreme values lie in the.

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Middle

Left tail

Right tail

Any where

The probability of sure event is:

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0

0.5

1

Negative

Tossing two dice possble sampes are.

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2

6

12

36

Binomial distribution is positively skewed

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P < 1/2

P > 1/2

P = 1/2

P < q < ¹/₂

The word statistics is at present used in

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Two senses

Three senses

Four senses

None of these

F(-∞) is always equal to

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Zero

One

Two

Negative one

When statistics is applied in Biology then it is called:

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Econometrics

Statistical inference

Statistical biology

Biometry

If all values considered in calculating an index are of equal importance, the index is

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Weighted

Simple

Un weighted

None of these

A hypergometric random variable is a (an)

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Independent variable

Continuous random variable

Discrete random variable

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

For a constant K ,the variance of K.

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Zero

A^-2

K

None of these

In how many ways a team of 4 players be chosen from a total 10 persons.

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40

210

5040

None of these

Hourly temperature recorded by weather brave is the example of:

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Discrete variable

Continuous variable

Qualitative

Both A and B

Co-efficent of standard deviation can be measured by the following formula

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