Quiz about Probability

Question 1

P(8)=

Accepted Answer

$$\frac{1}{8}$$

Answer

$$\frac{1}{4}$$

Answer

$$\frac{4}{5}$$

Answer

$$\frac{7}{8}$$

Question 2

P(even)=

Accepted Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{8}$$

Answer

$$\frac{7}{8}$$

Answer

$$\frac{4}{5}$$

Question 3

P (3 or 6)=

Accepted Answer

$$\frac{1}{4}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{4}{5}$$

Answer

$$\frac{1}{8}$$

Question 4

Is this spinner fair? Why?

Accepted Answer

yes, all the portions are the same size

Answer

no, there are too many numbers

Answer

yes, all spinners are fair

Answer

no, no spinners are fair

Question 5

P(blue)=

Accepted Answer

$$\frac{2}{11}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{9}{11}$$

Answer

$$\frac{1}{3}$$

Question 6

P(red)=

Accepted Answer

$$\frac{5}{11}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{6}{11}$$

Answer

$$\frac{1}{4}$$

Question 7

P(purple or green)=

Accepted Answer

$$\frac{4}{11}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{4}$$

Answer

$$\frac{6}{11}$$

Question 8

Is this a fair game?

Accepted Answer

no, there are not the same amount of each color.

Answer

yes, there are different colors

Answer

no, picking marbles out of a bag is never fair

Answer

yes, picking marbles out of a bag is always fair.

Question 9

What is NOT the Theoretical Probability of tossing a head on a coin?

Accepted Answer

1/6

Answer

1/2

Answer

Equally Likely

Answer

50%

Question 10

What is the likelihood of rolling a 1

Accepted Answer

Unlikely

Answer

Certain

Answer

Impossible

Answer

Equally Likely

Question 11

What is the likelihood of rolling a 10 on a normal die?

Accepted Answer

Impossible

Answer

Certain

Answer

Equally Likely

Answer

Unlikely

Question 12

A regular 6-sided die is to be rolled once. What is the probability that a number less than 3 is rolled?

Accepted Answer

1/3

Answer

1/6

Answer

1/2

Answer

2/3

Question 13

A regular 6-sided die is to be rolled once. What is the probability that a number less than or equal to 4 is rolled?

Accepted Answer

2/3

Answer

1/2

Answer

1/4

Answer

5/6

Question 14

A spinner has 8 equal regions. Each region is marked with one of the following numbers: 10, 20, 30, 40, 50, 60, 70, 80. What is the probability of an even number being spun on the first roll?

Accepted Answer

1

Answer

1/8

Answer

1/2

Answer

3/8

Question 15

There are 3 red marbles, 4 blue marbles, 2 green marbles, and 6 clear marbles in a burlap bag. One marble is randomly pulled from the bag. What is the probability the marble was green?

Accepted Answer

2/15

Answer

1/2

Answer

1/7

Answer

2/17

Question 16

If you select a marble without looking, how likely is it that you will pick a black one?

Accepted Answer

unlikely

Answer

certain

Answer

probable

Answer

impossible

Question 17

If you select a marble without looking, how likely is it that you will pick a black one?

Accepted Answer

impossible

Answer

certain

Answer

probable

Answer

unlikely

Question 18

A box contains 3 black pens, 7 blue pens, and 5 red pens. Without looking, P(red or black)

Accepted Answer

8/15

Answer

15/225

Answer

5/15

Answer

3/15

Probability

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