Probability Powerplay
Level 6, 2026-07-01
A bag has 9 red balls, 7 blue balls and 9 yellow balls. You take out a yellow ball, then a red ball, then another ball.
What is the probability of getting yellow for the last ball?
[1]
There are 14 balls in a bag. This is is the probability distribution of their color:


0.50.5
redyellow
Color

How many red balls were in the bag?
[1]
Cars go by on a road, each is a different color and type.

Probability of Color

1
redblue
Color

Probability of Type

1
sedanwagon
Type

What is the probability of a car being a blue sedan?
[2]
There are 120 balls in a bag. This is is the probability distribution of their color:


0.10.9
purplegreen
Color

How many green balls were in the bag?
[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:


0.70.250.05
12345
Number

What is the probability of rolling a 4?
[1]
Roll 24 6-sided dice.
How many times would you expect to get an odd number?
[1]
There are 50 balls in a bag. This is is the probability distribution of their color:


0.50.20.3
greenyellowred
Color

How many green balls were in the bag?
[1]
We asked a group of girls how many Oranges they eat in a month. Here are the results:
girls

532
0123
Oranges

What fraction of the girls eat exactly 4 Oranges in a month?
[2]
There are 90 balls in a bag. This is is the probability distribution of their color:


0.10.40.5
yellowpurpleorange
Color

How many yellow balls were in the bag?
[1]
There are 12 balls in a bag. This is is the probability distribution of their color:


0.750.25
purplegreen
Color

How many green balls were in the bag?
[1]
Cars go by on a road, each is a different color and type.

Probability of Color

0.70.3
bluegreen
Color

Probability of Type

0.40.6
wagonsedan
Type

What is the probability of a car being a green sedan?
[2]
A bag has 5 red balls and 8 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting blue for the second ball?
[1]
You shoot an arrow at a target. There is a 30% chance of scoring a 10 and a 10% chance of scoring a 30 and a 60% chance of scoring a 60. What average score do you expect to get if you do this many times?
[1]
There are 20 balls in a bag. This is is the probability distribution of their color:


0.50.5
redyellowpurple
Color

How many purple balls were in the bag?
[1]
There are 70 balls in a bag. This is is the probability distribution of their color:


0.90.1
orangepink
Color

How many pink balls were in the bag?
[1]
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 2 and a tail?
[1]
A wheel has 10 sections, 2 of each color.
What is the probability of getting yellow?
[1]