Probability Powerplay
Level 6, 2026-07-14
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 2 and a head?
[1]
A group of kids were timed running 100m. Here are the results:
Timekids
131
140
154
165
175

What fraction of the kids run 100m in less than 13s?
[2]
You roll 2 3-sided dice
You add the two numbers. What is the probability of getting more than or equal to 5?
[1]
You shoot an arrow at a target. There is a 20% chance of scoring a 20 and a 10% chance of scoring a 30 and a 70% chance of scoring a 60. What average score do you expect to get if you do this many times?
[1]
A group of kids were timed running 100m. Here are the results:
kids

31212
1314151617
Time

What is the probability of the kids to run 100m in exactly 15s?
[2]
You shoot an arrow at a target. There is a 20% chance of scoring a 10 and a 40% chance of scoring a 40 and a 40% chance of scoring a 60. What average score do you expect to get if you do this many times?
[1]
Roll 114 6-sided dice.
How many times would you expect to get less than or equal to 1?
[1]
There are 80 balls in a bag. This is is the probability distribution of their color:


0.50.10.4
blueyellowgreen
Color

If you choose a random ball from the bag, what is the probability of it not being blue or yellow?
[1]
There are 10 balls in a bag. This is is the probability distribution of their color:


0.40.30.3
pinkgreenblue
Color

If you choose a random ball from the bag, what is the probability of it not being pink?
[1]
A Crazy Die has 5 sides, but each side has a different probability of being rolled. This is is the probability distribution of the sides being rolled:


0.050.20.20.250.3
12345
Number

What is the probability of rolling 2 or 4?
[1]
Roll 6 6-sided dice.
How many times would you expect to get anything except 3?
[1]
Roll 126 6-sided dice.
How many times would you expect to get less than or equal to 6?
[1]
Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 5?
[1]
A bag has 2 balls with numbers from 3 to 4. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4?
[1]
A group of boys were timed running 100m. Here are the results:
Timeboys
135
140
151
166
171

What is the probability of the boys to run 100m in less than 17s?
[2]
There are 70 balls in a bag. This is is the probability distribution of their color:


0.20.30.5
blueorangegreen
Color

If you choose a random ball from the bag, what is the probability of it being green?
[1]
A bag has 8 balls with number 4 and 9 balls with a number 2. What will be the average of the numbers of the balls taken out of the bag
[1]