The Geometric Mean of 4, 8, and 16 is: MCQ with Answer and Explanation

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The Geometric Mean of 4, 8, and 16 is:

A. 8

B. 9.33

C. 12

D. 6

Answer: Option A

Solution (By JKSSB Mock Tests)

GM = cube root of (4 * 8 * 16) = cube root of (512) = 8.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Infant Mortality Rate (IMR) is the number of infant deaths per:

A. 1000 women

B. 1000 population

C. 100 live births

D. 1000 live births

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Correct Answer: Option D

Explanation:
IMR = (Infant deaths < 1 year / Live births) × 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The probability that a randomly selected leap year contains 53 Sundays is:

A. 3/7

B. 1/7

C. 2/7

D. 5/7

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Correct Answer: Option C

Explanation:
Leap year has 366 days = 52 weeks + 2 days. The 2 days can be Sun-Mon or Sat-Sun (2 out of 7 pairs), giving 2/7.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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In probability, an event that contains all possible outcomes is called:

A. Simple event

B. Null event

C. Sure event

D. Impossible event

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Correct Answer: Option C

Explanation:
Sure event equals the sample space, P = 1.

This question belongs to: Accountancy and Statistics Statistics

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