A bag has 5 red balls and 2 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting blue for the second ball? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are 1 or 4? | |
[1] |
Flip a coin 6 times.
Each time a Head comes up you win $2. How much money would you expect to make altogether? | |
[1] | | You shoot an arrow at a target. You will either score 10 (50% chance), 40 (20% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
Roll 150 6-sided dice.
How many times would you expect to get an ugly number? | |
[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:
| | 0.65 | 0.2 | | 0.05 | 0.1 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 1 or 4? | |
[1] |
A group of boys did a math test and here are their scores out of 5:
What is the probability of the boys to score less than 0? | |
[2] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | orange | red | | Color |
Probability of Type
| | 1 | | sedan | wagon | | Type |
What is the probability of a car being a orange wagon? | |
[2] |
Flip 3 coins.
What is the probability of getting 3 tails? | |
[1] | We asked a group of people how many Sandwiches they eat in a week. Here are the results:
What fraction of the people eat more than 2 Sandwiches in a week? | |
[2] |
The chances of feeling like icecream are 80%. The chances of being near an icecream store are 50%. There is a 10% chance that you lost all your money.
What is the probability of having icecream? | |
[1] | Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.4 | 0.6 | | yellow | orange | | Color |
Probability of Type
| | 0.9 | 0.1 | | wagon | sedan | | Type |
What is the probability of a car being a orange sedan? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a 2 and a head? | |
[1] | A wheel has 10 sections, each with a different reward.
What is the probability of getting a Gummy Bear? | |
[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:
What is the probability of rolling a 2? | |
[1] | Roll 150 6-sided dice.
How many times would you expect to get a number more than 6? | |
[1] |
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