Question # 1

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 two attributes A and B are negatively associated if

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independent

positively associated

negatively associated

correlated

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)

The critical region of=χ2distribution is

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χ2 <χ2v; 1-α

χ2 <χ2v;1-α

χ2 <χ2 v;1-α/2

χ2 <χ2v;1-α/2

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Φ²

q²

α²

β²

For an r x c contingency table, the number of degrees of freedom are equal to:

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rc

r + c

(r-1)+(c-1)

(r-1)(c-1)

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

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Positively

Negatively

Zero

Symmetrical

(AB), (Aβ), (αB), (αβ) are called

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positive class frequencies

negative class frequencies

natural class frequencies

ultimate class frequencies

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

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0.5

1

-1

0

The shape of the chi-square distribution depends upon_________.

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Parameters

Number of cells

Degrees of freedom

Standard deviation

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

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adjusted

omitted

changed

all of these

A process of dividing the objects into two mutually exclusive classes of an attribute is called

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classification

trichotomy

dichotomy

association

Chi-square curve ranges from:

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-∞ to +∞

0 to ∞

-∞ to 0

0 to 1

Degree of linear relationship between two variables is called

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regression

association

correlation

disassociation

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

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Independent

Dependent

Correlated

Quantitative

The degree of relationship between the two attributes is called

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regressor

correlation

regressand

association

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ICS Part 2 Statistics Chapter 15 Online Test MCQs With Answers

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