Arrange the following events in increasing order of probability:
Mathematics ·Previously asked in JKSSB Finance Account Assistant 2024
View the full solved paper: Finance Accounts Assistant
Question
Arrange the following events in increasing order of probability:
a. Picking a diamond from a well-shuffled deck of 52 playing cards.
b. Drawing a King from a standard deck of 52 cards.
c. Rolling a number between 1 and 6 on a fair six-sided die.
d. Getting heads on a fair coin toss.
- A. a, b, d, c
- B. c, a, d, b
- C. b, a, d, c (Correct answer)
- D. d, a, c, b
Correct Answer
Option C — b, a, d, c
Detailed Solution & Explanation
The correct answer is b, a, d, c.
Key Points
- Probabilities: b=King=4/52≈0.077, a=Diamond=13/52=0.25, d=Heads=0.5, c=rolling 1-6=1 (certain).
- Increasing order: b < a < d < c.
Additional Information
- Probability is favourable outcomes ÷ total outcomes, and always lies between 0 (impossible) and 1 (certain).
- Deck facts: 52 cards, 4 suits of 13, 26 red and 26 black, 12 face cards, and 4 of each rank — so a king is 4/52 and a diamond 13/52.
- Rolling a number from 1 to 6 on a standard die is a certain event, probability 1, which anchors the top of the ordering.
- Comparing as fractions with a common denominator, or as decimals, is safer than reasoning about which feels more likely.
Topics covered: Mathematics