Probability Powerplay
Level 6, 2026-07-24
There are 80 balls in a bag. This is is the probability distribution of their color:


0.50.20.3
pinkorangeyellow
Color

If you choose a random ball from the bag, what is the probability of it not being pink?
[1]
A group of boys were timed running 100m. Here are the results:
Timeboys
131
142
155
166
170

What fraction of the boys run 100m in exactly 13s?
[2]
You shoot an arrow at a target. There is a 30% chance of scoring a 10 and a 20% chance of scoring a 40 and a 50% chance of scoring a 60. What average score do you expect to get if you do this many times?
[1]
A bag has 6 red balls, 6 green balls and 3 blue balls. You take out 1 ball.
What is the probability of getting a blue ball or a red ball?
[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:


0.450.150.250.15
12345
Number

What is the probability of rolling a number that is bigger than 2 or smaller than 4?
[1]
Roll 30 6-sided dice.
How many times would you expect to get an ugly number?
[1]
There are 16 balls in a bag. This is is the probability distribution of their color:


0.50.5
purpleyellow
Color

How many purple balls were in the bag?
[1]
You roll a 9 sided die and a 6 sided die.
What is the probability of getting 1 on both dice?
[1]
We asked a group of humans how many Sandwiches they eat in a month. Here are the results:
humans

Sandwiches01
15
22
35

What fraction of the humans eat more than 2 Sandwiches in a month?
[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:


0.20.150.050.6
12345
Number

What is the probability of rolling a number that is bigger than 4 or smaller than 5?
[1]
There are 80 balls in a bag. This is is the probability distribution of their color:


0.50.10.4
bluepinkgreen
Color

If you choose a random ball from the bag, what is the probability of it being pink?
[1]
A bag has 2 balls with numbers from 5 to 6. You take out 1 ball.
What is the probability of getting a ball with an odd number?
[1]
There are 70 balls in a bag. This is is the probability distribution of their color:


0.10.50.4
yelloworangepink
Color

If you choose a random ball from the bag, what is the probability of it not being pink or orange?
[1]
We asked a group of dogs how many Icecreams they eat in a month. Here are the results:
dogs

Icecreams05
12
2
32

What is the probability of the dogs to eat exactly 3 Icecreams in a month?
[2]
The weather forecast says that the chances of rain are 20%. The chance of remembering your umbrella is 40%. Your chance of being outside today are 60%.
What is the probability of getting wet today?
[1]
Flip a coin 6 times.
Each time a head comes up you win $4 and with each tail you lose $1. How much money would you expect to make altogether?
[1]
There are 60 balls in a bag. This is is the probability distribution of their color:


0.60.4
yellowgreenpink
Color

How many yellow balls were in the bag?
[1]