Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are less than 5? | |
[1] | | You shoot an arrow at a target. You will either score 10 (40% chance), 40 (20% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] |
A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 14s?
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[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:
What is the probability of rolling a 1? | |
[1] |
We asked a group of humans how many Popsicles they eat in a month. Here are the results:
What fraction of the humans eat less than 4 Popsicles in a month? | |
[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:
| | 0.55 | 0.05 | 0.25 | 0.15 | | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 1 or 3? | |
[1] |
A bag has 4 red balls, 7 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 yellow for the last ball? | |
[1] | You roll a 9 sided die and a 5 sided die.
What is the probability of getting 4 on both dice? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What fraction of the boys run 100m in exactly 17s?
| |
[2] | | You shoot an arrow at a target. There is a 20% chance of scoring a 10 and a 30% chance of scoring a 30 and a 50% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.2 | 0.5 | 0.3 | | red | purple | blue | | Color |
How many blue balls were in the bag? | |
[1] | A group of kids were timed running 100m. Here are the results:
What is the probability of the kids to run 100m in exactly 14s?
| |
[2] |
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 1? | |
[2] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are even? | |
[1] |
Flip a coin 18 times.
Each time a Tail comes up you win $3. How much money would you expect to make altogether? | |
[1] |