Question # 1

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

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Freqeuncy distribution

Classification

Tabulation

Array

Life of a T.V. tube is a.

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Discrete variable

Continuous varaible

Constant

Qualitative variable

The value of standard deviation changes by change of.

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Origin

Algebraic sign

Scale

None

The probability of an impossible event is.

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Positive

Zero

Negative

1

The median of - 3, 0, -5 , is.

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-3

0

-5

Does not exist

Variance of σ² is equal E to (Y²) - _______?

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E (y)

[E(y)]²

E(y²)

None of these

ⁿC_r is calculated by formula

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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

Fora a positively skewed distribution.

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Mean > Mode

Mode > Mean

Median > Mean

None of these

The conditional probability P(A/B) is given by.

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(A∩B)/(B)

P(A∩B)/P(A)

P(A∩B)/P(B)

(A∩B)/P(B)

The mean deviation of dispersion can be negative.

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Often

Sometimes

Always

Never

Circular test is satisfied by

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Laspeyres index

Paasche's index

Fisher's method

None of these

The numebr of ways in whihc four books can be arranged on a shelf is.

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4

6

24

12

The consumer price index number is also called.

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The cost of living index number

The retail price index number

The wholsale price index number

Both a and b

Is the tossing of two perfect coins the probability at least one head occur is.

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1/4

1

1/2

3/4

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

If data is arranged in increasing order of magnitude that data is scald to be arranged in:

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Descending order

Ascending order

Statistic order

Both A and B

"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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