The main purpose of classification of data is to: MCQ with Answer and Explanation

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The main purpose of classification of data is to:

A. Draw graphs

B. Present data in rows and columns

C. Calculate measures of central tendency

D. Group homogeneous data to highlight similarities and patterns

Answer: Option D

Solution (By JKSSB Mock Tests)

Classification brings order to data by grouping similar items.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

If the mean of a set of observations is 0, it implies:

A. All values are zero

B. The observations are all positive

C. The sum of all values is zero

D. There are no negative observations

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Correct Answer: Option C

Explanation:
Mean = Σx / n. If mean = 0, then Σx = 0.

This question belongs to: Accountancy and Statistics Statistics

Question #2

If the mean of a dataset is 15 and the sum of squared deviations from the mean is 90 for 10 observations, the variance is:

A. 8.1

B. 10

C. 90

D. 9

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Correct Answer: Option D

Explanation:
Population variance = 90/10 = 9. Sample variance = 90/9 = 10, but usually variance of the data (population) is 9 if it's the whole set. I'll assume population.

This question belongs to: Accountancy and Statistics Statistics

Question #3

A decrease in the crude death rate with an unchanged crude birth rate will cause the rate of natural increase to:

A. Become zero

B. Remain unchanged

C. Decrease

D. Increase

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Correct Answer: Option D

Explanation:
Natural increase = CBR - CDR. If CDR falls, the difference increases.

This question belongs to: Accountancy and Statistics Statistics

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