Question # 1

The total area under the curve of chi-square distribution is_______.

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1

0.5

0 to ∞

-∞ to +∞

The two attribute A and B are positively associated, if _________.

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(AB) = (A)(B)/n

(AB) < (A)(B)/n

(AB) ≠ (A)(B)/n

(AB) > (A)(B)/n

The shape of the chi-square distribution depends upon_________.

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Parameters

Number of cells

Degrees of freedom

Standard deviation

The degree of relationship between the two attributes is called_______.

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Association

Correlation

Contingency

Quantitative

(AB), (Aβ), (αB), (αβ) are called

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positive class frequencies

negative class frequencies

natural class frequencies

ultimate class frequencies

If two attributes A and B have perfect positive association value of the coefficient of association is equal to _______.

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+1

-1

0

(r-1)(c-1)

When the expected frequencies are very small the value of=χ2has been

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adjusted

omitted

changed

all of these

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independent

positively associated

negatively associated

correlated

C= ------------------------------

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A characteristic which varies in quality form one individual to another is called

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variable

constant

attribute

none of these

The two attributes A and B are ________associated, If (AB) < (A)(B)/n.

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Positively

Negatively

Zero

Symmetrical

If 6Σd²/n(n² - 1) is zero, the value of r_s is ________.

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0.5

1

-1

0

For a 3 x 3 contingency table, the number of cells in the table are _________.

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3

4

6

9

A characteristic which varies in quality from one individual to another is called an_______.

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Variable

Attribute

Associated

Independent

If two attributes A and B are independent, then co-efficient of association is______.

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-1

+1

0

0.5

(α) = (αB) + ------------------

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(Aβ)

(AB)

(αβ)

(A)

If (AB) = (A)(B)/n, the two attributes. A and B are _________.

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Independent

Dependent

Correlated

Quantitative

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