The sex ratio in India (Census 2011) is defined as: MCQ with Answer and Explanation

The sex ratio in India (Census 2011) is defined as:

A. Number of females per 1000 population

B. Number of males per 1000 population

C. Number of males per 1000 females

D. Number of females per 1000 males

Answer: Option D

Sex ratio is females per 1000 males; in 2011 it was 943.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

In the theory of attributes, the total number of ultimate class frequencies for 'n' attributes is:

A. n^2

B. 2^n

C. n!

D. 3^n

Correct Answer: Option B

Explanation:
For n attributes, each can be either present or absent, resulting in 2^n ultimate class frequencies.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

For a set of discrete values, which measure of central tendency minimizes the sum of squared deviations?

A. Harmonic Mean

B. Mode

C. Median

D. Arithmetic Mean

Correct Answer: Option D

Explanation:
A fundamental property of the arithmetic mean is that the sum of the squares of deviations from it is always minimum.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

If a fair coin is tossed three times, the probability of exactly two heads is:

A. 5/8

B. 1/4

C. 1/2

D. 3/8

Correct Answer: Option D

Explanation:
Number of ways: C(3,2)=3; each sequence probability (1/2)³; total 3/8.

This question belongs to: Accountancy and Statistics Statistics