The probability of drawing a king or a spade from a deck of cards is: MCQ with Answer and Explanation

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The probability of drawing a king or a spade from a deck of cards is:

A. 1/13

B. 4/13

C. 1/4

D. 17/52

Answer: Option B

Solution (By JKSSB Mock Tests)

4 kings + 13 spades - 1 king of spades = 16 favorable, probability = 16/52 = 4/13.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Consider the following pairs: (1) CBR - Per 1000 population, (2) GFR - Per 1000 women aged 15-49, (3) IMR - Per 1000 live births. Which pair is correctly matched?

A. 1 and 2 only

B. 2 and 3 only

C. 1, 2 and 3

D. 1 and 3 only

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Correct Answer: Option C

Explanation:
All three definitions are correct.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The property that the sum of squared deviations from the measure is minimum is characteristic of:

A. Arithmetic mean

B. Mode

C. Geometric mean

D. Median

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Correct Answer: Option A

Explanation:
The arithmetic mean minimizes the sum of squared deviations, i.e., Σ(x - x̄)² is minimum.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Which of the following is not a vital event?

A. Birth

B. Marriage

C. Graduation

D. Death

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Correct Answer: Option C

Explanation:
Vital events refer to births, deaths, marriages, and divorces.

This question belongs to: Accountancy and Statistics Statistics

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