Cumulative frequency curve is known as: MCQ with Answer and Explanation

Cumulative frequency curve is known as:
A. Frequency polygon
B. Ogive
C. Bar chart
D. Histogram
Answer: Option B
Solution (By JKSSB Mock Tests)
An ogive is a graph showing cumulative frequencies plotted against class boundaries.

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Practice More Statistics Questions

Question #1
The mid-value of a class interval is 25 and the class width is 10. The class limits (exclusive) are:
A. 15-25
B. 20-30
C. 20-30 inclusive
D. 25-35

Correct Answer: Option B


Explanation:
Lower limit = mid-value - width/2 = 25 - 5 = 20; upper limit = 25 + 5 = 30.

This question belongs to: Accountancy and Statistics Statistics
Question #2
The mode of a distribution is the value at which the frequency curve:
A. Is zero
B. Crosses the median
C. Has a minimum
D. Has a maximum

Correct Answer: Option D


Explanation:
Mode corresponds to the peak of the frequency distribution.

This question belongs to: Accountancy and Statistics Statistics
Question #3
Assertion (A): The crude death rate of a developed country may be higher than that of a developing country. Reason (R): Developed countries often have an older age structure. Choose the correct option:
A. Both A and R are true, and R is the correct explanation of A
B. A is false, R is true
C. A is true, R is false
D. Both A and R are true, but R is not the correct explanation of A

Correct Answer: Option A


Explanation:
CDR can be higher in developed countries due to larger elderly population, despite lower age-specific mortality. R explains A.

This question belongs to: Accountancy and Statistics Statistics