You flip a coin and roll a 6 sided die.
What is the probability of getting a 5 and a head? | |
[1] | Roll 1 6-sided die.
What is the probability of getting a 1? | |
[1] |
Flip a coin 8 times.
Each time a Head comes up you win $2. How much money would you expect to make altogether? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are odd? | |
[1] |
Flip a coin 16 times.
Each time a Tail comes up you win $3. It costs $21 to play (paid once). How much money would you expect to make altogether? | |
[1] | A bag has 10 red balls and 3 blue balls. You take out a red ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |
| A bag has 6 balls with number 2 and 4 balls with a number 4. What will be the average of the numbers of the balls taken out of the bag | |
[1] | | You shoot an arrow at a target. There is a 10% chance of scoring a 10 and a 20% chance of scoring a 30 and a 70% chance of scoring a 60. What average score do you expect to get if you do this many times? | |
[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 number that is smaller than or equal to 1? | |
[1] | We asked a group of girls how many Bowls of Ramen they eat in a day. Here are the results:
| Bowls of Ramen | girls | | 0 | 6 | | 1 | 1 | | 2 | 0 | | 3 | 6 |
What fraction of the girls eat exactly 4 Bowls of Ramen in a day? | |
[2] |
You flip a coin and roll a 6 sided die.
What is the probability of getting a number more than 1 and a tail? | |
[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 4 or 5? | |
[1] |
A group of dogs were timed running 100m. Here are the results:
What is the probability of the dogs to run 100m in more than 15s?
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[2] | A group of kids did a math test and here are their scores out of 5:
What fraction of the kids score exactly 5? | |
[2] |
| A bag has 5 balls with number 2 and 6 balls with a number 9. What will be the average of the numbers of the balls taken out of the bag | |
[1] | A bag has 8 red balls and 2 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting red for the last ball? | |
[1] |
There are 30 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.2 | 0.2 | | red | blue | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being red or purple? | |
[1] |