Probability Powerplay

Level 6, 2026-04-26

There are 90 balls in a bag. This is is the probability distribution of their color:


0.5	0.1	0.4
purple	green	blue
Color

If you choose a random ball from the bag, what is the probability of it not being purple?

[1]

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


0.5	0.1	0.4
blue	red	orange
Color

If you choose a random ball from the bag, what is the probability of it not being red?

[1]

A group of people were timed running 100m. Here are the results:

Time	people
13	6
14	6
15	2
16	4
17	1

What is the probability of the people to run 100m in less than 15s?

[2]

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

Pizzas	kids
0	1
1	2
2	1
3	0

What is the probability of the kids to eat exactly 0 Pizzas in a month?

[2]

A group of people were timed running 100m. Here are the results:

people
Time	13	2
	14	2
	15
	16	3
	17

What is the probability of the people 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:


0.7		0.1	0.2
1	2	3	4	5
Number

What is the probability of rolling a number that is bigger than 3?

[1]

Roll 102 6-sided dice.
How many times would you expect to get anything except 5?

[1]

An obstacle course has 2 Fences and 1 Ditches. You have a 90% chance of clearing a Fence and a 50% chance of clearing a Ditch.
What is the probability of having a perfect run (clearing everything)?

[1]

Roll 72 6-sided dice.
How many times would you expect to get more than 1?

[1]

You flip a coin and roll a 6 sided die.
What is the probability of getting a number less than 6 and a tail?

[1]

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

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

What is the probability of the boys to score less than 1?

[2]

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

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

What is the probability of the dogs to score exactly 4?

[2]

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

Bowls of Ramen	boys
0	6
1	4
2	2
3	4

What is the probability of the boys to eat exactly 2 Bowls of Ramen in a week?

[2]

A bag has 6 balls with numbers from 2 to 7. You take out 1 ball.
What is the probability of NOT getting the ball with the number 7?

[1]