If GRR = 1.8 and female life table survival ratio (0 to mean age of childbearing) is 0.95, NRR is: MCQ with Answer and Explanation

If GRR = 1.8 and female life table survival ratio (0 to mean age of childbearing) is 0.95, NRR is:

A. 1.71

B. 1.8

C. 1.89

D. 0.95

Answer: Option A

NRR = GRR × survival probability = 1.8 × 0.95 = 1.71.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

Which average is strictly impossible to calculate if any of the observations in the dataset is exactly zero?

A. Harmonic Mean

B. Geometric Mean

C. Arithmetic Mean

D. Both Geometric and Harmonic Mean

Correct Answer: Option D

Explanation:
Geometric mean becomes zero if any value is zero, and Harmonic mean involves division by zero, making both invalid.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

Which measure of central tendency is most suitable for qualitative ordinal data like intelligence rankings?

A. Geometric mean

B. Median

C. Mean

D. Mode

Correct Answer: Option B

Explanation:
Ordinal data can be ranked; the median is the appropriate measure as it does not require numerical differences.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

The number of classes in a frequency distribution is determined by:

A. Median only

B. Mean of data

C. Range of data and number of observations

D. Mode only

Correct Answer: Option C

Explanation:
Class intervals are chosen based on the spread and size of data.

This question belongs to: Accountancy and Statistics Statistics