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Mathematical Economics-Online Practice Exam 8

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NET / SET Online Practice Exams

Mathematical Economics

Test

Multi-choice

Question

1. The coefficient of correlation-

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has no limit

 is more than -1

is less than 1

None of these

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Question

2. If the sum of the product of deviations of x and y series from their means is zero, the correlation coefficient will be-

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1

0

-1

0.9

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Question

3. Karl Pearson’s coefficient of correlation measures-

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linear correlation

non-linear correlation

Both linear and non-linear correlation

None of the above

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Question

4. Maximum positive value of coefficient of correlation is

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.9

0.5

1.00

There is no maximum limit

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Question

5. The minimum value of coefficient of correlation is-

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1.0

0

-1.00

There is no minimum limit

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Question

6. Correlation between price and demand is

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Positive

Negative

any of the above

Both positive and negative

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Question

7. Correlation between price and supply is-

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Positive

Negative

Positive and Negative

Positive or Negative

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Question

8. If the coefficient of correlation between x and y is 0.75 then the relationship can be termed as-

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positive and perfect

positive but not perfect

negative and perfect

negative but not perfect

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Question

9. If the coefficient of correlation between two variables x and y is -1.00, then the relationship can be termed as

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 positive and perfect

 positive but not perfect

negative and perfect

 negative but not perfect

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Question

10. Which one of the following statements is true ?

Answers

Correlation coefficient is expressed in the units of original data

Correlation coefficient is an absolute measure of relationship between the two variables

Coefficient of correlation is a relative measure of association between two variables

Correlation coefficient establishes cause and effect relationship between the two variables

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