Question # 1

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

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adjusted

omitted

changed

all of these

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)

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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Association

Correlation

Contingency

Quantitative

n = (A) + --------------------

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(B)

(α)

(β)

(A)

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Φ²

q²

α²

β²

Chi-square curve ranges from:

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-∞ to +∞

0 to ∞

-∞ to 0

0 to 1

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 value of coefficient of association lies between

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0 and + 1

-1 and + 1

-1 and 0

-0.5 and + 0.5

The two attributes A and B are negatively associated if

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The shape of the chi-square distribution depends upon_________.

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Parameters

Number of cells

Degrees of freedom

Standard deviation

The value of chi-square statistic is always _______.

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Negative

Non-negative

Zero

One

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

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1

0.5

0 to ∞

-∞ to +∞

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

The degree of relationship between the two attributes is called

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regressor

correlation

regressand

association

(α) = (αB) + ------------------

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(Aβ)

(AB)

(αβ)

(A)

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

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Degree of linear relationship between two variables is called

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regression

association

correlation

disassociation

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