Probability Powerplay
Level 3, 2024-11-25
A bag has 9 balls with numbers from 4 to 12. You take out 1 ball.
What is the probability of getting a ball with an even number?
[1]
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 5?
[1]
Roll 1 6-sided die.
What is the probability of getting a number smaller than or equal to 6?
[1]
Roll 84 6-sided dice.
How many times would you expect to get more than or equal to 2?
[1]
A bag has 10 red balls and 2 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting blue for the second ball?
[1]
Roll 1 6-sided die.
What is the probability of getting a 5?
[1]
Roll 2 6-sided dice.
What is the probability of getting a 3 on both dice?
[1]
Roll 1 6-sided die.
What is the probability of getting an odd number?
[1]
Roll a die 12 times.
How many times would you expect to get a 1?
[1]
Flip 1 coin.
What is the probability of getting a tail?
[1]
A bag has 8 red balls and 3 blue balls. You take out 1 red ball, then another ball.
What is the probability of getting red for the second ball?
[1]
Roll a die 60 times.
How many times would you expect to get a 1?
[1]
Roll 18 6-sided dice.
How many times would you expect to get anything except 3?
[1]
Roll 48 6-sided dice.
How many times would you expect to get a number more than 1?
[1]
A bag has 9 red balls and 4 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting red for the second ball?
[1]
Roll 132 6-sided dice.
How many times would you expect to get anything except 6?
[1]
Flip 7 coins.
What is the probability of getting 7 tails?
[1]
A bag has 9 red balls, 2 green balls and 6 blue balls. You take out 1 ball.
What is the probability of getting a blue ball?
[1]
A bag has 9 red balls, 9 green balls and 4 blue balls. You take out 1 ball.
What is the probability of getting a blue ball or a green ball?
[1]
Roll 2 6-sided dice.
What is the probability of getting a 2 on both dice?
[1]