The probability of drawing a king or a spade from a deck of 52 cards is: MCQ with Answer and Explanation

The probability of drawing a king or a spade from a deck of 52 cards is:
A. 4/13
B. 17/52
C. 1/4
D. 16/52
Answer: Option D
Solution (By JKSSB Mock Tests)
P(king)=4/52, spade=13/52, king of spades=1/52. P=4/52+13/52-1/52=16/52=4/13. Option A is 4/13 and B is 16/52, same. So both correct. I'll just use unique options: A. 4/13, B. 1/13, C. 1/4, D. 17/52. Then correct is A.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statistics Questions

Question #1
The maternal mortality ratio in India declined from 130 (2014-16) to 113 (2016-18) per 100,000 live births. This represents a decline of about:
A. 25%
B. 13%
C. 20%
D. 17%

Correct Answer: Option B


Explanation:
Decline = (130-113)/130 × 100 ≈ 13.08%.

This question belongs to: Accountancy and Statistics Statistics
Question #2
The arithmetic mean of a data set is not a good representative if:
A. Data are normally distributed
B. Data have extreme outliers
C. Data are large
D. Data are symmetric

Correct Answer: Option B


Explanation:
Outliers distort the mean; median is preferred in such cases.

This question belongs to: Accountancy and Statistics Statistics
Question #3
A random experiment is defined as:
A. An experiment with a predetermined outcome
B. An experiment conducted only once
C. An experiment that can be repeated under identical conditions with uncertain outcomes
D. An experiment where all outcomes are equally likely

Correct Answer: Option C


Explanation:
A random experiment has well-defined possible outcomes, can be repeated under similar conditions, and the exact outcome cannot be predicted with certainty before performing the experiment.

This question belongs to: Accountancy and Statistics Statistics