Question # 1

The range of the scores 19,3,140,25,95,is

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140

137

143

3

A probability function is _________ function.

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Mathematical

Mathematical expectation

Converges

None of these

Commodities subject to considerable price variation should best be measured by

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Quantity index

Price index

Value index

None of thes

If p = q = 1/2 then distribution is called.

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Postively

Skewed

Symmetrical

Negatively

If the random variable X denotes the number of heads when three distinet coins are tossed,then X assumes the value.

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0.1.2.3

1,3,3,1

1,2,3

None of these

A fair coin is tossed five the times. The probability of getting zero head is.

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1/2

1/32

6

1/5

Teh suitable average for the qualitative data is.

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Mean

Mode

weighted mean

Geometric mean

The parameters of the binomial distributions are

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x and n

x and p

p and q

n and p

A set representing all possible out comes of a random experiment is called

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Sample space

Universal set

Simple event

Random experiment

The process of arranging data into rows and columns is called.

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Freqeuncy distribution

Classification

Tabulation

Array

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

probability distribution of a continuous random variable can be presented by.

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Formula

Curve

Tabular form

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

If mean = 25 and variance is also 25, then coefficient of variation is

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100%

25%

20%

10%

The mean is based on.

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Small values

Extreme values

All the values

Large values

The hypergeometric distribution has -------------- parameters

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One

Two

Three

Four

teh most frequent value of the data if it exists is.

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A.M

G.M

Mode

Median

The third quartile is also called

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75^th percentile

Upper quartile

5^th deciles

Both (a) and (b)

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