Probability Powerplay

Level 6, 2026-09-13

There are 30 balls in a bag. This is is the probability distribution of their color:


0.8	0.2
red	yellow	blue
Color

How many red balls were in the bag?

[1]

A bag has 4 red balls, 10 blue balls and 2 yellow balls. You take out a yellow ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball?

[1]

A group of people did a math test and here are their scores out of 5:

Score	people
0	2
1	6
2	1
3	4
4	4
5	2

What fraction of the people score less than 4?

[2]

We asked a group of humans how many Pillows they eat in a week. Here are the results:

Pillows	humans
0	0
1	6
2	5
3	5

What fraction of the humans eat exactly 4 Pillows in a week?

[2]

Roll 84 6-sided dice.
How many times would you expect to get less than 6?

[1]

There are 50 balls in a bag. This is is the probability distribution of their color:


0.4	0.1	0.5
yellow	pink	red
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:


0.55	0.25			0.2
1	2	3	4	5
Number

What is the probability of rolling a number from 4 to 5?

[1]

Roll 126 6-sided dice.
How many times would you expect to get anything except 5?

[1]

We asked a group of boys how many Hot dogs they eat in a week. Here are the results:

boys
1	4	5	3
0	1	2	3
Hot dogs

What is the probability of the boys to eat less than 0 Hot dogs in a week?

[2]

We asked a group of kids how many Bananas they eat in a week. Here are the results:

Bananas	kids
0	2
1	0
2	6
3	6

What is the probability of the kids to eat exactly 4 Bananas in a week?

[2]

There are 4 balls in a bag. This is is the probability distribution of their color:


0.5	0.5
green	red
Color

How many red balls were in the bag?

[1]

Roll 150 6-sided dice.
How many times would you expect to get anything except 5?

[1]

Cars go by on a road, each is a different color and type.

Probability of Color
1
pink	orange
Color

Probability of Type
1
sedan	wagon
Type

What is the probability of a car being a orange wagon?

[2]

We asked a group of people how many Pizzas they eat in a day. Here are the results:

people
2	3	1	4
0	1	2	3
Pizzas

What is the probability of the people to eat less than 2 Pizzas in a day?

[2]