The median of 12, 15, 11, 18, 20 is: MCQ with Answer and Explanation

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The median of 12, 15, 11, 18, 20 is:

A. 11

B. 18

C. 15

D. 20

Answer: Option C

Solution (By JKSSB Mock Tests)

Ordered: 11, 12, 15, 18, 20. Median = 15 (middle value).

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

The weighted harmonic mean is used to average:

A. Growth rates

B. Performance ratios when weights are proportional to denominator

C. Speeds when distances vary

D. Prices when expenditures are equal

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Correct Answer: Option B

Explanation:
Weighted harmonic mean is appropriate when the weights correspond to the denominator of the ratio.

This question belongs to: Accountancy and Statistics Statistics

Question #2

If a population has a high infant mortality rate, its life expectancy at birth is likely:

A. Equal to fertility

B. Unaffected

C. High

D. Low

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Correct Answer: Option D

Explanation:
High infant deaths reduce the average life expectancy.

This question belongs to: Accountancy and Statistics Statistics

Question #3

A box contains 3 defective and 7 non-defective items. Two items are selected at random. The probability that exactly one is defective is:

A. 14/45

B. 7/15

C. 21/45

D. 1/5

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Correct Answer: Option B

Explanation:
Total C(10,2)=45. Favorable: 3×7=21. Probability=21/45=7/15.

This question belongs to: Accountancy and Statistics Statistics

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