There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.1 | 0.4 | 0.5 | | orange | yellow | blue | | Color |
If you choose a random ball from the bag, what is the probability of it being yellow or blue? | |
[1] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.5 | 0.1 | 0.4 | | green | pink | purple | | Color |
If you choose a random ball from the bag, what is the probability of it not being pink or green? | |
[1] |
We asked a group of dogs how many Peaches they eat in a day. Here are the results:
What fraction of the dogs eat more than 4 Peaches in a day? | |
[2] | A bag has 8 balls with numbers from 4 to 11. You take out 1 ball.
What is the probability of NOT getting the ball with the number 10? | |
[1] |
A group of boys were timed running 100m. Here are the results:
What is the probability of the boys to run 100m in exactly 16s?
| |
[2] | A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in exactly 13s?
| |
[2] |
| You shoot an arrow at a target. You will either score 20 (40% chance), 30 (20% chance), or 50. What average score do you expect to get if you do this many times? | |
[1] | Roll 42 6-sided dice.
How many times would you expect to get a number less than 7? | |
[1] |
We asked a group of humans how many Apples they eat in a day. Here are the results:
What is the probability of the humans to eat exactly 3 Apples in a day? | |
[2] | A bag has 10 red balls, 7 blue balls and 7 yellow balls. You take out a yellow ball, then a yellow ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
A bag has 2 balls with numbers from 4 to 5. You take out 1 ball.
What is the probability of NOT getting the ball with the number 4? | |
[1] | A bag has 3 red balls, 10 blue balls and 5 yellow balls. You take out a blue ball, then a yellow ball, then another ball.
What is the probability of getting yellow for the last ball? | |
[1] |
There are 10 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.5 | 0.2 | | green | pink | orange | | Color |
How many pink balls were in the bag? | |
[1] | A wheel has 7 sections, each has a reward in dollars, from $1 through to $7.
What prize do we expect to get if we spin the wheel? | |
[1] |
A group of girls did a math test and here are their scores out of 5:
What is the probability of the girls to score more than 3? | |
[2] |