If Population X has a higher CDR than Population Y, but a lower SDR, this suggests: MCQ with Answer and Explanation

If Population X has a higher CDR than Population Y, but a lower SDR, this suggests:
A. Population Y has higher fertility
B. Data for Population X is inaccurate
C. Population X has better healthcare
D. Population X has an older age structure
Answer: Option D
Solution (By JKSSB Mock Tests)
A higher crude death rate but lower standardized rate indicates that Population X's apparent higher mortality is due to a larger proportion of elderly people (who have higher death rates), not worse age-specific mortality.

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Practice More Statistics Questions

Question #1
Demography is the statistical study of:
A. Vital events only
B. Human population
C. Animal population
D. Economic variables

Correct Answer: Option B


Explanation:
Demography focuses on human populations, their size, structure, and changes.

This question belongs to: Accountancy and Statistics Statistics
Question #2
If two distributions have the same mean but different standard deviations, which statement is TRUE?
A. Their modes must be equal
B. Their medians must be equal
C. The one with larger SD has more spread around the mean
D. They have identical shapes

Correct Answer: Option C


Explanation:
Standard deviation measures dispersion; a larger SD indicates greater variability of observations around the mean, regardless of the mean's value or distribution shape.

This question belongs to: Accountancy and Statistics Statistics
Question #3
Which measure of central tendency is undefined for data containing zero?
A. Geometric mean
B. Arithmetic mean
C. Median
D. Harmonic mean

Correct Answer: Option D


Explanation:
Harmonic mean involves reciprocals; if any value is zero, reciprocal is infinite, so it's undefined.

This question belongs to: Accountancy and Statistics Statistics