Probability Powerplay
Level 6, 2026-09-15
A bag has 3 red balls and 4 blue balls. You take out a red ball, then a red ball, then another ball.
What is the probability of getting red for the last ball?
[1]
A bag has 5 balls with numbers from 4 to 8. You take out 1 ball.
What is the probability of NOT getting the ball with the number 5?
[1]
The chances of feeling like icecream are 80%. The chances of being near an icecream store are 40%. There is a 10% chance that you lost all your money.
What is the probability of having icecream?
[1]
A group of girls did a math test and here are their scores out of 5:
girls

524466
012345
Score

What fraction of the girls score exactly 1?
[2]
A group of dogs did a math test and here are their scores out of 5:
dogs

Score0
12
24
36
43
52

What is the probability of the dogs to score exactly 2?
[2]
A group of boys were timed running 100m. Here are the results:
Timeboys
135
140
151
164
175

What is the probability of the boys to run 100m in exactly 16s?
[2]
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:


0.10.050.050.250.55
12345
Number

What is the probability of rolling a number that is smaller than or equal to 3?
[1]
A group of people did a math test and here are their scores out of 5:
Scorepeople
04
14
25
36
41
56

What is the probability of the people to score more than 5?
[2]
A group of humans did a math test and here are their scores out of 5:
Scorehumans
03
11
25
31
40
51

What fraction of the humans score exactly 4?
[2]
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:


0.850.10.05
12345
Number

What is the probability of rolling a number that is bigger than 4 or smaller than 5?
[1]
A bag has 4 balls with number 8 and 6 balls with a number 2. What will be the average of the numbers of the balls taken out of the bag
[1]
Roll 72 6-sided dice.
How many times would you expect to get a number more than 6?
[1]
You shoot an arrow at a target. There is a 50% chance of scoring a 30 and a 50% chance of scoring a 60. What average score do you expect to get if you do this many times?
[1]
A wheel has 5 red sections and 5 purple sections.
What is the probability of getting purple?
[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:


0.050.95
12345
Number

What is the probability of rolling a number that is bigger than 2 or smaller than 4?
[1]