🔢 Math & Numbers Trivia
Quiz Set 12 — Probability
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
What is the probability of rolling a 6 on a fair die?
A fair die has 6 faces, so P(6) = 1/6.
Question 2 of 10
What is the probability of drawing an ace from a standard deck?
There are 4 aces in 52 cards: 4/52 = 1/13.
Question 3 of 10
If you flip 2 coins, what's the probability of 2 heads?
P(HH) = 1/2 × 1/2 = 1/4.
Question 4 of 10
What does a probability of 0 mean?
A probability of 0 means the event is impossible.
Question 5 of 10
What does a probability of 1 mean?
A probability of 1 means the event is certain.
Question 6 of 10
How many possible outcomes when rolling 2 dice?
Each die has 6 faces: 6 × 6 = 36 possible outcomes.
Question 7 of 10
What is the complement of an event with P=0.3?
The complement = 1 - P = 1 - 0.3 = 0.7.
Question 8 of 10
What is a sample space?
The sample space is the complete set of all possible outcomes.
Question 9 of 10
What is conditional probability?
Conditional probability is the probability of A given that B has occurred.
Question 10 of 10
What is the birthday paradox about?
In a group of just 23 people, there's a >50% chance two share a birthday.