Flip a coin 6 times.
Each time a Tail comes up you win $3. How much money would you expect to make altogether? | |
[1] | | A bag has 6 balls with number 4 and 3 balls with a number 2. What will be the average of the numbers of the balls taken out of the bag | |
[1] |
A wheel has 6 sections, each a number on it from 1 to 6. If you spin an even number you win that amount of dollars, if you spin an odd number you lose.
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 fraction of the girls score less than 1? | |
[2] |
Flip a coin 16 times.
Each time a Head comes up you win $2. It costs $24 to play (paid once). How much money would you expect to make altogether? | |
[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 14s?
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[2] |
Roll 12 6-sided dice.
How many times would you expect to get less than 1? | |
[1] | There are 40 balls in a bag. This is is the probability distribution of their color:
| | 0.6 | 0.3 | 0.1 | | blue | orange | purple | | Color |
If you choose a random ball from the bag, what is the probability of it being orange? | |
[1] |
A bag has 5 balls with number 7 and 3 balls with a number 3. You take out 1 ball.
What is the probability of getting the ball with the number 3? | |
[1] | There are 90 balls in a bag. This is is the probability distribution of their color:
How many blue balls were in the bag? | |
[1] |
A bag has 5 balls with number 7 and 2 balls with a number 9. You take out 1 ball.
What is the probability of getting the ball with the number 9? | |
[1] | We asked a group of people how many Sandwiches they eat in a month. Here are the results:
What fraction of the people eat more than 4 Sandwiches in a month? | |
[2] |
Roll 138 6-sided dice.
How many times would you expect to get more than 3? | |
[1] | You flip a coin and roll a 6 sided die.
What is the probability of getting a 2 or a 6 and a tail? | |
[1] |
We asked a group of girls how many Hot dogs they eat in a day. Here are the results:
What is the probability of the girls to eat exactly 1 Hot dogs in a day? | |
[2] | | You shoot an arrow at a target. You will either score 20 (40% chance), 40 (10% chance), or 60. What average score do you expect to get if you do this many times? | |
[1] |
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