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

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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. 900

B. 450

C. 440

D. 460

Answer: Option B

Solution (By JKSSB Mock Tests)

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

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

In a Laspeyres price index, the weights are:

A. Current period prices

B. Base period quantities

C. Current period quantities

D. Base period prices

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Correct Answer: Option B

Explanation:
Laspeyres index weights items by base period quantities, keeping the basket constant.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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

A. Ultimate order

B. Zero order

C. Second order

D. First order

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Correct Answer: Option D

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 #3

The weighted harmonic mean is used in which of the following situations?

A. Averaging percentages

B. Finding the typical value of a symmetric distribution

C. Averaging rates when weights are in the denominator units

D. Measuring dispersion

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Correct Answer: Option C

Explanation:
Weighted harmonic mean is useful when the weights are in the same units as the numerator of a rate.

This question belongs to: Accountancy and Statistics Statistics

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