You flip a coin and roll a 6 sided die.
What is the probability of getting a number equal to 3 and a tail? | |
[1] | Roll 138 6-sided dice.
How many times would you expect to get an even number? | |
[1] |
| You shoot an arrow at a target. There is a 20% chance of scoring a 20 and a 20% 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 32 balls in a bag. This is is the probability distribution of their color:
How many red balls were in the bag? | |
[1] |
Flip 7 coins.
What is the probability of getting 7 heads? | |
[1] | A group of people were timed running 100m. Here are the results:
What fraction of the people run 100m in exactly 15s?
| |
[2] |
Cars go by on a road, each is a different color and type.
Probability of Color
| | 0.8 | 0.2 | | green | red | | Color |
Probability of Type
| | 0.5 | 0.5 | | wagon | sedan | | Type |
What is the probability of a car being a green sedan? | |
[2] | A group of kids were timed running 100m. Here are the results:
What fraction of the kids run 100m in more than 16s?
| |
[2] |
A group of people did a math test and here are their scores out of 5:
What fraction of the people score less than 2? | |
[2] | There are 20 balls in a bag. This is is the probability distribution of their color:
| | 0.7 | 0.2 | 0.1 | | orange | blue | yellow | | Color |
How many yellow balls were in the bag? | |
[1] |
| You shoot an arrow at a target. There is a 60% chance of scoring a 20, a 30% chance of scoring a 40, or you might miss completely and score 0. What average score do you expect to get if you do this many times? | |
[1] | Roll 24 6-sided dice.
How many times would you expect to get less than or equal to 3? | |
[1] |
There are 50 balls in a bag. This is is the probability distribution of their color:
| | 0.4 | 0.6 | | yellow | pink | purple | | Color |
How many pink balls were in the bag? | |
[1] | A bag has 2 balls with number 8 and 6 balls with a number 8. You take out 1 ball.
What is the probability of getting the ball with the number 8? | |
[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 less than 2? | |
[2] |