Statistics and Econometrics-Online Practice Exam 6
Statistics and Econometrics-Online Practice Exam 6

Statistics and Econometrics-Online Practice Exam 6

NET / SET Online Practice Exams

Statistics and Econometrics

Test

Multi-choice 6

Question

1. If the data is qualitative, which of the following averages can be calculated?

Answers

A.M

G.M

Median

Mode

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Question

2. Which of the following statements is correct ?

Answers

The arithmetic mean can be computed even if an observation of the series is missing

Arithmetic mean is always the best measure of central tendency

The value of median of a data set gets affected by extreme values

Median can be calculated from a grouped data with open-ended classes

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Question

3. The mean marks of 100 students were found to be 40, Later on it was observed that score of 53 was misread as 83. What is the corrected mean corresponding to the corrected score ?

Answers

36.9

39.7

38

37.8

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Question

4. The median marks of 50 students were 60. But, later on it was found that the marks of a student who secured 75 were wrongly taken as 65. What is the correct median ?

Answers

76

56

60

68.8

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Question

5. One of the measures of dispersion which is more useful in case of open-ended distributions is

Answers

Range

Quartile deviation

Mean Deviation

Standard deviation

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Question

6. Standard deviation is always computed from

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Mean

Mode

Median

Mode

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Question

7. Mean deviation is

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More than S. D

 Less than S. D

Not related to S.D.

Equal to standard deviation

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Question

8. Coefficient of variation is given by

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Question

9. Quartile deviation is based on the-

Answers

Middle 50 per cent of the items

Highest 25 per cent of the items

Lowest 25 per cent of the items

Highest 50 per cent of the items

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Question

10. If 25% of the items are less than 20 and 25% are more than 40, the quartile deviation is-

Answers

10

30

40

20

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