Roll 72 6-sided dice.
How many times would you expect to get less than 6? | |
[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 3? | |
[2] |
A wheel has 13 sections, each has a reward in dollars, from $1 through to $13.
What prize do we expect to get if we spin the wheel? | |
[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:
| | 0.5 | 0.2 | 0.05 | | 0.25 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a 1? | |
[1] |
There are 18 balls in a bag. This is is the probability distribution of their color:
How many pink balls were in the bag? | |
[1] | | You shoot an arrow at a target. There is a 70% chance of scoring a 20 and a 30% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
A group of people did a math test and here are their scores out of 5:
What is the probability of the people to score more than 3? | |
[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:
| | 0.25 | | 0.25 | 0.15 | 0.35 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling a number that is bigger than 5 and smaller than 4? | |
[1] |
We asked a group of people how many Hot dogs they eat in a day. Here are the results:
What is the probability of the people to eat exactly 4 Hot dogs in a day? | |
[2] | A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in less than 16s?
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[2] |
A wheel has 14 sections, each with a different reward.
What is the probability of getting a Mike & Ike? | |
[1] | We asked a group of people how many Burgers they eat in a month. Here are the results:
What fraction of the people eat more than 1 Burgers in a month? | |
[2] |
Flip a coin 6 times.
Each time a head comes up you win $4 and with each tail you lose $3. It costs $3 to play (paid once). How much money would you expect to make altogether? | |
[1] | Roll 24 6-sided dice.
How many times would you expect to get anything except 2? | |
[1] |
Flip a coin 4 times.
Each time a Head comes up you win $2. It costs $7 to play (paid once). How much money would you expect to make altogether? | |
[1] |