A card is drawn from a pack of 52 cards. The probability that it is a king or a queen is: MCQ with Answer and Explanation

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A card is drawn from a pack of 52 cards. The probability that it is a king or a queen is:

A. 2/13

B. 1/13

C. 1/26

D. 4/13

Answer: Option A

Solution (By JKSSB Mock Tests)

4 kings + 4 queens = 8 favorable. Probability = 8/52 = 2/13.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

The Crude Birth Rate (CBR) is defined as the number of live births per:

A. 100 women in the childbearing age

B. 1,000 mid-year population

C. 1,000 women in the childbearing age

D. 100,000 mid-year population

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Correct Answer: Option B

Explanation:
CBR is the simplest measure of fertility, calculated as (Total Live Births / Mid-year Population) × 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Bayes' Theorem is primarily used to calculate:

A. Posterior probabilities

B. Marginal probabilities

C. Prior probabilities

D. Joint probabilities

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Correct Answer: Option A

Explanation:
Bayes' theorem updates prior probabilities using new evidence to compute posterior probabilities.

This question belongs to: Accountancy and Statistics Statistics

Question #3

The Laspeyres index formula is:

A. Σp₁q₁ / Σp₀q₁ × 100

B. Σp₁q₀ / Σp₀q₀ × 100

C. Σp₁q₁ / Σp₀q₀ × 100

D. √( Σp₁q₀/Σp₀q₀ × Σp₁q₁/Σp₀q₁ ) × 100

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Correct Answer: Option B

Explanation:
Laspeyres uses base period weights.

This question belongs to: Accountancy and Statistics Statistics

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