Question # 1

A relative frequency distribution presents frequencies in terms of

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Fractions

Whole numbers

Percentages

Both a and c but not b

For a constant K ,the variance of K.

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Zero

A^-2

K

None of these

F(-∞) is always equal to

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Zero

One

Two

Negative one

The most central value of an arrayed data is.

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Mode

Median

Mean

Harmonic mean

The mena is affected by

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Change of origin

Scale of measurement

Both a and b

None of these

In binomial distribution it is impossible to find

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P(x L)

P(x=0)

P(x > 0)

P(0≤ x≤∞)

If an unweighed average of revalives index pn/po x 100 is calculated for each product in the compostive, what is then done with these values to finish the calculation.

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The values are multiplied together.

The largest values is found

The valeus are averaged

None of them

Which of the following statements is correct.

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Every symmetrical curve is measokurtic

Standard deviation is the mean squared deviations from the mean

The standard deviation of a constant is constant

Teh second moment about zero equals variance.

A random variable is also called.

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Chance variable

Stochastic variable

Discrete variable

Both A and B

The number 5.56500 rounded off to nearest hundredth is.

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5.57

5.56

6.00

5.00

The hyper-geometric distribution has........... parameters.

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1

2

3

4

For the given data 2,3,7,0,-8 G.M will be.

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Negative

Positive

Zero

Impossible

A student soved 25 questions from first 50 questios of a book to be solved. The prob, that he will solve the remaining all questions.

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0.25

0.51

1

0

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 distribution is measokurtic if the moment coefficient of of kurtosis b2 is.

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Equal to 0

Equal to 3

Less than 3

Greater than zero

The probability of sure event is:

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0

0.5

1

Negative

The weights used in a price index are.

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Percentage of total price

Average of prices

Quantities

None of these

"P_r can be solved by the formula.

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N!/ r!(n-r)!

(n-r)!/r!

n!(n-r!)

n!(n-r)!/r!

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