Which graphical representation uses cumulative frequencies? MCQ with Answer and Explanation

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Which graphical representation uses cumulative frequencies?

A. Histogram

B. Bar diagram

C. Ogive

D. Frequency polygon

Answer: Option C

Solution (By JKSSB Mock Tests)

An ogive plots cumulative frequencies against class boundaries.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

In a life table, the radix (l₀) is usually:

A. 1,000,000

B. 10,000

C. 1000

D. 100,000

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Correct Answer: Option D

Explanation:
Typically, l₀ = 100,000, representing the hypothetical birth cohort.

This question belongs to: Accountancy and Statistics Statistics

Question #2

In a dataset with an even number of observations, the median is calculated as:

A. The most frequent observation

B. The average of the two middle observations

C. The weighted average of all observations

D. The middle observation

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Correct Answer: Option B

Explanation:
For an even number of ordered observations, the median is the arithmetic mean of the two central values, ensuring it represents the center of the distribution.

This question belongs to: Accountancy and Statistics Statistics

Question #3

If a group of 50 students has an average weight of 55 kg and another group of 30 students has an average weight of 45 kg, the combined average is:

A. 51.25 kg

B. 50 kg

C. 52 kg

D. 53.75 kg

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Correct Answer: Option A

Explanation:
Sum = 50×55 + 30×45 = 2750 + 1350 = 4100, total = 80, mean = 4100/80 = 51.25.

This question belongs to: Accountancy and Statistics Statistics

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