A card is drawn from a well-shuffled deck of 52 cards. The probability that it is a jack or a spade is: MCQ with Answer and Explanation

A card is drawn from a well-shuffled deck of 52 cards. The probability that it is a jack or a spade is:
A. 16/52
B. 1/4
C. 17/52
D. 4/13
Answer: Option A
Solution (By JKSSB Mock Tests)
P(jack)=4/52, spade=13/52, jack of spades=1/52. P=4/52+13/52-1/52=16/52.

Discuss this Question (0)

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

Practice More Statistics Questions

Question #1
The main source of population data in India is:
A. Census
B. Economic Survey
C. National Sample Survey
D. Annual Survey of Industries

Correct Answer: Option A


Explanation:
The decennial census provides comprehensive population data.

This question belongs to: Accountancy and Statistics Statistics
Question #2
The mode of a continuous frequency distribution can be estimated using the formula:
A. L + (h / 2)
B. L + [(f₁ - f₀) / (f₁ - f₂)] × h
C. L + [(f₁ - f₀) / (2f₁ - f₀ - f₂)] × h
D. L + [(f₀ - f₁) / (f₀ + f₁)] × h

Correct Answer: Option C


Explanation:
For grouped data, mode = L + [(f₁ - f₀) / (2f₁ - f₀ - f₂)] × h, where L=lower limit of modal class, f₁=frequency of modal class, f₀=previous class frequency, f₂=next class frequency, h=class width.

This question belongs to: Accountancy and Statistics Statistics
Question #3
An ogive is used to determine:
A. Mean
B. Standard deviation
C. Median
D. Mode

Correct Answer: Option C


Explanation:
The median can be read from the ogive at the N/2 cumulative frequency.

This question belongs to: Accountancy and Statistics Statistics