The geometric mean of 2, 4, and 8 is: MCQ with Answer and Explanation

The geometric mean of 2, 4, and 8 is:

A. 4.67

B. 3.76

C. 5.33

D. 4

Answer: Option D

(2 × 4 × 8)^(1/3) = 64^(1/3) = 4.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

What is the order of the class frequency denoted by (A)?

A. Zero order

B. Ultimate order

C. First order

D. Second order

Correct Answer: Option C

Explanation:
The order of a class frequency depends on the number of attributes it involves. (A) involves one attribute, making it first order.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The mean of a data set is 50 and the median is 52. Using the empirical relation, the approximate mode is:

A. 54

B. 44

C. 48

D. 56

Correct Answer: Option D

Explanation:
Mode ≈ 3Median - 2Mean = 3×52 - 2×50 = 156 - 100 = 56.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Bayes' theorem is often used in:

A. Calculating the mean of a sample

B. Updating probabilities after new evidence

C. Testing independence

D. Constructing index numbers

Correct Answer: Option B

Explanation:
It's used for probabilistic inference and decision making under uncertainty.

This question belongs to: Accountancy and Statistics Statistics