Roll 2 6-sided dice.
What is the probability of getting 2 numbers that are even? | |
[1] | There are 100 balls in a bag. This is is the probability distribution of their color:
| | 0.3 | 0.2 | 0.5 | | blue | pink | orange | | Color |
If you choose a random ball from the bag, what is the probability of it being pink or orange? | |
[1] |
Roll 2 6-sided dice.
What is the probability of getting a 2 on both dice? | |
[1] | Flip 7 coins.
What is the probability of getting 7 tails? | |
[1] |
A group of girls were timed running 100m. Here are the results:
What fraction of the girls run 100m in less than 17s?
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[2] | | You shoot an arrow at a target. There is a 80% chance of scoring a 30 and a 20% chance of scoring a 50. What average score do you expect to get if you do this many times? | |
[1] |
We asked a group of humans how many Sandwiches they eat in a day. Here are the results:
What is the probability of the humans to eat more than 0 Sandwiches in a day? | |
[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:
| | 0.05 | | 0.1 | 0.2 | 0.65 | | 1 | 2 | 3 | 4 | 5 | | Number |
What is the probability of rolling 2 or 5? | |
[1] |
A bag has 3 red balls and 10 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting red for the second ball? | |
[1] | We asked a group of boys how many Chocolates they eat in a month. Here are the results:
What is the probability of the boys to eat exactly 3 Chocolates in a month? | |
[2] |
Roll 1 6-sided die.
What is the probability of getting an odd number? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 2 or a 2 and a head? | |
[1] |
A bag has 4 red balls and 7 blue balls. You take out 1 blue ball, then another ball.
What is the probability of getting red for the second ball? | |
[1] | Roll 4 6-sided dice.
What is the probability of getting 4 numbers that are more than 3? | |
[1] |
Roll 12 6-sided dice.
How many times would you expect to get more than or equal to 5? | |
[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 from 3 to 5? | |
[1] |
A bag has 4 red balls and 10 blue balls. You take out a blue ball, then a blue ball, then another ball.
What is the probability of getting blue for the last ball? | |
[1] |