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Probability - Simple

Total questions: 40

Worksheet time: 59mins

Name
Class
Date
1.
The tree diagram shows the outcomes of rolling a die and flipping a coin.  
How many total outcomes are there?  
a)
6
b)
12
c)
24
d)
36
2.

The tree diagram shows the outcomes of rolling a die and flipping a coin.

What is the probability of rolling an even number and flipping a head?

a)

3/12

b)

1/4

c)

4/12

d)

0/12

3.

You have a 3 tops, 2 pants and 2 shoes. How many total outfit options are represented?

a)

12 outfits

b)

22 outfits

c)

3 outfits

d)

7 outfits

4.
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
5.

A Tree Diagram is

a)

A written list of all possible outcomes

b)

A description of all possible outcomes

c)

A drawing with branches of all possible outcomes

6.

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)

1/8

7.
Which shows the sample space for flipping two coins?
a)
H, T
b)
HH, HT, TH, TT
c)
HH, TT
d)
Dime, Nickel
8.

What is the probability that you will get plain crust with ham on your pizza?

a)

1/8

b)

1/2

c)

1/10

d)

2/10

9.

Which tree diagram has the most possible outcomes?

a)
b)
c)
10.

A bag contains 3 black (B) and 5 white (W) balls. Paul picks a ball at random from the bag, notes its color, and puts it back in the bag. He then picks another ball at random from the bag and notes its color. Which tree diagram shows all the possible outcomes?

a)
b)
c)
d)
11.
P(cereal or steak)
a)
9/40
b)
1/40
c)
8/40
d)
1/2
12.
P(not cereal or seafood)
a)
7/8
b)
5/8
c)
1/40
d)
1/8
13.

Jason can choose 1 pair of pants and one shirt to wear today. Here are his choices. Which tree diagram shows all of the combinations that Jason can choose from?

a)
b)
c)
d)
14.
a)

1/2, 50%

b)

1/3, 33.3%

c)

2/3, 66.7%

d)

1/5, 20%

15.
a)

0%

b)

1/2, 50%

c)

1/6, 16.7%

d)

100%

16.
a)

0%

b)

1/2, 50%

c)

2/3, 66.7%

d)

100%

17.
a)

0%

b)

100%

c)

2/3, 66.7%

d)

3/5, 60%

18.
a)

2/9, 22%

b)

5/9, 56%

c)

1/9, 11%

d)

7/9, 78%

19.
If I spin 35 times, how many times should the color yellow show up?
a)
1
b)
5
c)
7
d)
10
20.
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
21.
What is the probability of spinning a number less than 5? 
a)
16 2/3%
b)
33 1/3 %
c)
66 2/3%
d)
83 1/3%
22.
If you spin the spinner 90 times, how many times should the number 3 be selected?
a)
9
b)
15
c)
16
d)
30
23.

Theoretically, what is the probability of rolling a sum of 10 with a pair of dice? (Hint: Try making a 6 by 6 grid of all possible outcomes)

a)

1/4

b)

3/12

c)

1/12

d)

3/36

24.

Theoretically, what is the probability of rolling a sum of two with a pair of dice? (Hint: Try making a 6 by 6 grid of all possible outcomes)

a)

1/6

b)

2/12

c)

1/36

d)

1/18

25.

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

26.
What is the probability of choosing a vowel from the alphabet?
a)
21/26
b)
5/26
c)
1/21
d)
7/21
27.
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
28.

The letters that form the word MATHEMATICS are placed in a bowl. What is the probability of choosing a letter that is a consonant?

a)

7/11

b)

4/11

c)

2/11

d)

5/11

29.
The letters that form the word MATHEMATICS are placed in a bowl. What is the probability of choosing a "M"?
a)
8/121
b)
4/11
c)
2/11
d)
4/121
30.
What is the probability of spinning an even section OR a red section?
a)
3/8
b)
5/8
c)
7/8
d)
1/4
31.
Find the probability of rolling a 7 on a single die.
a)
1/6
b)
7/6
c)
0
d)
7/7
32.
Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. You flip a fair coin and the coin will land heads up.
a)
impossible
b)
unlikely
c)
as likely as not
d)
likely
33.
What is the probability of rolling 15 with a pair of dice?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
34.
a)
23
b)
25
c)
35
d)
50
35.
Four colors of blocks are placed in a bag and each time a block is chosen from the bag, its color is written down in the table and the placed back in the bag.  The experiment is conducted 75 times.  Which color has an experimental probability of 1/3?
a)
green
b)
blue
c)
yellow
d)
red
36.
150 people were polled on their favorite sport.  The results are in the table.  Which statement is true?
a)
Baseball & swimming are more popular than football.
b)
Football & tennis are more popular than soccer & baseball.
c)
25% of people prefer soccer & basketball.
d)
10% more people prefer soccer than basketball.
37.
How many ways can you flip 3 coins?
a)
4
b)
6
c)
8
d)
10
38.
ESPN sportscasters voted on next year's likely Superbowl champion.  Their votes are in the table.  Which statement is true based on the table?
a)
The Cowboys & Raiders are equally likely to win the Superbowl next year.
b)
The Steelers are twice as likely as the Cowboys to win the Superbowl next year.
c)
The Steelers are 5% more likely to win the Superbowl than the Packers.
39.
What is the princesses name?
a)
Ariel
b)
Rapunzel
c)
Jasmine
d)
Belle
40.
What is the monkey's name in The Lion King?
a)
Rafiki
b)
Mufasa
c)
Zazu
d)
Simba

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