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Probability Quiz

Total questions: 65

Worksheet time: 2hrs 38mins

Name
Class
Date
1.
What is an outcome?
a)
The result of an experiment
b)
The chance or likelihood of an event
c)
A fraction, decimal, or a percent
d)
An activity that gives various results
2.

What is the P( not purple) on this spinner?

a)

2/5

b)

1/5

c)

4/5

d)

3/5

3.

What is the probability of spinning an even number?

a)

16 2/3%

b)

33 1/3%

c)

50%

d)

75%

4.
Find the probability of rolling a 7 on a single die.
a)
1/6
b)
7/6
c)
0
d)
7/7
5.
What is the probability of spinning green?
a)
0
b)
1/4
c)
1/2
d)
3/4
6.
What is the probability of spinning red?
a)
0
b)
5/12
c)
1/2
d)
3/4
7.
What is the probability of spinning green or blue?
a)
0
b)
5/12
c)
1/2
d)
3/4
8.
How do you write 0.02 as a percent?
a)
20%
b)
200%
c)
2%
d)
.02%
9.
The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 
a)
2/7
b)
5/49
c)
5/7
d)
10/49
10.
You pick a marble from this bag.
What is the probability you will choose either a black or white marble?
a)
3/5
b)
9/100
c)
1/10
d)
2/5
11.
You roll two die.
What is the probability you will roll a 4, then roll a number less than 3?
a)
1/36
b)
1/18
c)
1/9
d)
1/6
12.

Find the relative frequency of spinning Letter Q.

a)

15/15

b)

3/10

c)

3/50

d)

7/10

13.
You flip a nickel three times.
Find the probability that all flips will land on tails.
a)
1/2
b)
1/4
c)
1/6
d)
1/8
14.

A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?

a)

3/10

b)

3/9

c)

1/9

d)

1/3

15.

Use the tree diagram to find the probability of tossing a head first and then a tail when a coin is tossed twice.

a)

1

b)

1/2

c)

1/4

d)

1/3

16.
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
a)
5/6
b)
1/2
c)
1/3
d)
1/6
17.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
18.
Experimental Probability is:
a)
What Will happen 
b)
What actually happens
c)
What should happen
d)
What I think Happens
19.
Theoretical Probability is?
a)
What Should happen
b)
What does happen
c)
What Will Happen
d)
What I want to Happen
20.
P(not A) = 
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
21.

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

a)

3/5

b)

1/6

c)

2/5

d)

1/5

22.

A letter from the word MATH is chosen at random, then a coin is flipped. What is the probability of choosing the letter 'm' then getting tails?

a)

17/26

b)

1/8

c)

5/13

d)

1/6

23.
Which shows the sample space for flipping two coins?
a)
H, T
b)
HH, HT, TH, TT
c)
HH, TT
d)
Dime, Nickel
24.
Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.  P(green, black)
a)
3/20
b)
1/4
c)
3/31
d)
2/27
25.
You roll a pair of number cubes (dice). Which equation represents how to find the probability of rolling a 2 and an odd number?
P(2, then odd)
a)
⅙ x ½ = 1/12
b)
⅙ + ½ = 2/8
c)
 ½ x ½ = 1/4
d)
⅓ + ½ = 5/6
26.
If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make?
a)
58
b)
96
c)
20
d)
192
27.
The cafeteria is serving three kinds of sandwiches:  tuna (T), chicken, (C), and peanut butter (P).  They are also serving a choice of two drinks:  milk (M) or water (W).  Which shows the complete set of possible combinations?
a)
TW, CW, PW
b)
TW, TM, TC, CW, PW
c)
TW, TM, CW, CM, PW, PM
d)
TCP, MW
28.
You pick a marble from this bag.
What is the probability you will choose either a black or a white marble?
*remember to simplify* 
a)
3/5
b)
4/10
c)
3/10
d)
6/10
29.
What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?
a)
1/7
b)
7/20
c)
7/10
d)
3/10
30.
If you were to roll the die one time what is the probability of it landing on a 2?
a)
2 out of 6
b)
2 out of 2
c)
1 out of 6
d)
1 out of 1
31.
What is the probability of rolling an even number on a die?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
32.
What is the probability of rolling 15 with a pair of dice?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
33.

A spinner is spun twice. What is the probability of spinning green both times?

a)

1/16

b)

1/4

c)

1/2

d)

1/8

34.

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Marbles are taken one at a time without replacement. P(both marbles are purple)

a)

2/9

b)

1/3

c)

1/2

d)

1/4

35.
A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced.
P(white, then purple, then black)
a)
1/36
b)
2/39
c)
5/41
d)
6/43
36.
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
a)
3
b)
1/10
c)
3/10
d)
30%
37.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
38.

Based on the chart, what is the experimental probability of pulling a green marble?

a)

1/8

b)

8/25

c)

8/100

d)

7/8

39.
If you choose from the following M & M colors, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown
a)
8/26
b)
4/13
c)
8/25
d)
1/3
40.
A set of all possible outcomes is known as - 
a)
a list
b)
a complement
c)
a sample space
d)
an event
41.
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
a)
5/6
b)
1/2
c)
1/3
d)
1/6
42.
What is the probability of pulling a red marble
out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?
a)
1/7
b)
7/20
c)
7/10
d)
3/10
43.

What is the probability of spinning green (as a percent)?

a)

30%

b)

20%

c)

25%

d)

50%

44.
a)

23

b)

25

c)

35

d)

50

45.
Jillian rolled a number cube 360 times. About how many times do you expect her to roll a 2?
a)
20 
b)
180
c)
60 
d)
120
46.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.
47.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
48.
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
a)
5/6
b)
1/2
c)
1/3
d)
1/6
49.
The chart below represents the number of marbles in a jar.
P(green) = 
a)
5/19
b)
10/28
c)
5/14
50.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
51.
What is the probability of selecting an orange candy?
a)
0%
b)
25%
c)
50%
d)
100%
52.
P(not A) = 
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
53.

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

a)

3/5

b)

1/6

c)

2/5

d)

1/5

54.

A number cube, labeled 1 through 6, will be rolled one time. What is the likelihood of rolling a 6?

a)

Impossible

b)

Not likely

c)

Very likely

d)

Certain

55.

The probability of an event is 67%.

Describe the likelihood of the event

a)

Certain

b)

Likely

c)

Equally likely/unlikely

d)

Unlikely

e)

Impossible

56.

The Probability of an event is .21. Descirbe the likelihood of the event.

a)

Certain

b)

Likely

c)

Unlikely

d)

Impossible

57.

The probability of an event is 0.74. Describe the likelihood of the event.

a)

Certain

b)

Likely

c)

Equally likely/unlikely

d)

Unlikely

e)

Impossible

58.

In a random survey of 50 students at Great Middle School, 32 said chocolate was their favorite flavor of yogurt. The school has 450 students. How many of them are likely to select chocolate as their favorite flavor? 

a)

144

b)

162

c)

225

d)

288

59.

What is the probability of pulling a red marble out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?

a)

1/7

b)

7/20

c)

7/10

d)

3/10

60.

The following M & M colors are in the bowl:4 yellow, 6 orange, 3 green, 5 blue, 2 brown.What is the probability of selecting a brown candy?

a)

2/18

b)

1/9

c)

2/20

d)

1/10

61.

What is the probability of spinning a 2 on the spinner?

a)

1/2

b)

1/3

c)

1/8

d)

1/4

62.

How many total outfit options are represented?

a)

12

b)

22

c)

3

63.

How many outcomes are there with tossing a coin and rolling a dice?

a)

2

b)

6

c)

12

d)

24

64.

What is the possibility of tossing a coin four times and getting tails each time?

a)

1/16

b)

1/8

c)

1/2

d)

1/4

65.

. A box contains all the letters of the word U N D E R S T A N D. What is the probability of selecting an 'N' first and a 'D' next, if the first letter is replaced?

a)

3/50

b)

1/25

c)

1/10

d)

2/5

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