A cumulative frequency distribution shows the number of observations: MCQ with Answer and Explanation

A cumulative frequency distribution shows the number of observations:
A. In the modal class
B. Exactly equal to a value
C. Only in the first class
D. Less than or more than certain values
Answer: Option D
Solution (By JKSSB Mock Tests)
Cumulative frequencies sum frequencies up to a certain point (less than type) or from a point (more than type).

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Practice More Statistics Questions

Question #1
The cost of living index number for 2022 with base 2015 is 150. This implies that a household which spent Rs. 10,000 per month in 2015 needs to spend ______ in 2022 to maintain the same standard of living.
A. Rs. 15,000
B. Rs. 10,000
C. Rs. 11,500
D. Rs. 12,500

Correct Answer: Option A


Explanation:
Cost of Living Index 150 means the cost has increased by 50%, so new cost = 10,000 × 1.5 = 15,000.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Neonatal Mortality Rate is most influenced by:
A. Vaccination coverage at age 5
B. Adolescent health programs
C. Quality of immediate newborn care and infection prevention
D. Elderly care services

Correct Answer: Option C


Explanation:
The first 28 days are critical for newborn survival; factors like birth asphyxia management, thermal care, breastfeeding initiation, and sepsis prevention directly impact NMR.

This question belongs to: Accountancy and Statistics Statistics
Question #3
Which measure of central tendency is the most stable from sample to sample?
A. Median
B. Mode
C. Mean
D. None

Correct Answer: Option C


Explanation:
The arithmetic mean is based on all observations and has the smallest sampling variance among unbiased estimators of the population mean.

This question belongs to: Accountancy and Statistics Statistics