The average wage of 10 male workers is Rs. 500, and of 10 female workers is Rs. 400. What is the combined mean wage? MCQ with Answer and Explanation

The average wage of 10 male workers is Rs. 500, and of 10 female workers is Rs. 400. What is the combined mean wage?

A. 450

B. 440

C. 900

D. 460

Answer: Option A

Combined mean = (n1*x1 + n2*x2) / (n1+n2) = (5000 + 4000) / 20 = 450.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

Which part of a statistical table provides an explanation of the abbreviations or symbols used in the table?

A. Footnote

B. Headnote

C. Stub

D. Title

Correct Answer: Option A

Explanation:
Footnotes are placed at the bottom of the table to clarify any specific entries, symbols, or abbreviations.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The geometric mean is suitable for averaging:

A. Heights

B. Ratio data like growth rates

C. Normal test scores

D. Temperatures

Correct Answer: Option B

Explanation:
GM is appropriate for averaging multiplicative changes over time.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

The condition (A) ≥ (AB) is necessary for:

A. Zero association

B. Consistency of data

C. Negative association

D. Independence

Correct Answer: Option B

Explanation:
Consistency requires that marginal frequencies are not less than the joint frequencies.

This question belongs to: Accountancy and Statistics Statistics