Question 1

You have a bag of colored blocks. There are 3 blue, 6 yellow, 2 green and one black. What is the probability of picking a green one? (write as a fraction in lowest terms)

Accepted Answer

1/6

Answer

2/12

Answer

2/10

Answer

1/12

Question 2

You have a bag of colored blocks. There are 3 blue, 6 yellow, 2 green and one black. What is the probability of picking a blue one or a yellow one? (write as a percent)

Accepted Answer

75%

Answer

25%

Answer

50%

Answer

40%

Question 3

You have a bag of colored blocks. There are 3 blue, 6 yellow, and one black. How many yellow blocks would you have to add to the bag so that the probability of picking a yellow was 2/3?

Accepted Answer

2

Answer

4

Answer

1

Answer

0

Question 4

Suppose you tossed a coin and got 3 heads in a row. If you hand the same coin to your friend, what is the probability they will get three heads in a row? (answer as a fraction)

Accepted Answer

1/8

Answer

3/8

Answer

1/2

Answer

3

Question 5

You have a bag full of purple, green and white marbles. 1/4 of them are green and 1/5 of them are  purple. What is the probability of picking a white marble? (write as a fraction)

Accepted Answer

11/20

Answer

1/20

Answer

2/9

Answer

9/20

Question 6

You have a bag full of purple, green and white marbles. 1/4 of them are green and 1/5 of them are purple. If there were 40 marbles in the bag then how many of them are green?

Accepted Answer

10

Answer

12

Answer

4

Answer

20

Question 7

Is the probability of landing on each of the colors the same?

Accepted Answer

no

Answer

yes

Answer

it depends how many times you spin it

Answer

6 headed aliens

Question 8

Suppose you spun the spinner 40 times. How many times would you expect to land on blue?

Accepted Answer

10 times

Answer

12

Answer

5

Answer

20

Question 9

How many different meals can be made? You can only choose one meat and one sauce.

Accepted Answer

6

Answer

10

Answer

5

Answer

2

Question 10

If the meals are prepared randomly, what is the probability that the meal will include ketchup? (Answer in a fraction in lowest terms)

Accepted Answer

1/3

Answer

1/2

Answer

1/6

Answer

2/6

Question 11

If you spin the left spinner once and then spin the right spinner once, what is the probability the sum of the two numbers is 3? (record answer as a percent)

Accepted Answer

5%

Answer

50%

Answer

10%

Answer

25%

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