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Worksheets

Probability

Total questions: 21

Worksheet time: 18mins

Name
Class
Date
1.

What is the complement of flipping a coin 20 times and landing on heads 11 times?

a)

P' = 1/10

b)

P' = 11/20

c)

P' = 9/20

d)

P' = 10/20

2.

10 M&Ms are in a bag, 4 red, 2 blue, 1 green and 3 brown. What is the probability of pulling out a red candy?

a)

2/5

b)

2/10

c)

1/5

d)

4/10

3.

10 M&Ms are in a bag, 4 red, 2 blue, 1 green and 3 brown. What is the probability of pulling out a blue candy?

a)

1

b)

2/10

c)

1/5

d)

3/10

4.

Alphabet magnets are placed in a bag(one of each letter). What is the probability of pulling out the letter z?

a)

25/26

b)

5/26

c)

1/13

d)

1/26

5.

You have 20 coins in your wallet, 9 quarters, 5 dimes, 2 nickels and 4 pennies. What is the probability of pulling out a penny?

a)

4/20

b)

1/5

c)

2/10

d)

16/20

6.
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
7.
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
8.
What is the probability of spinning an even number? 
a)
16 2/3%
b)
33 1/3%
c)
50%
d)
75%
9.
a)

0%

b)

1/6, 16.7%

c)

1/2, 50%

d)

6/6 100%

10.
P(not A) = 
*Remember to simplify.*
a)
6/8
b)
3/4
c)
2/8
d)
1/4
11.
Is the spinner more likely or less likely to land
on green than yellow?
a)
more likely
b)
less likely
12.
Is it certain or impossible for the spinner to land on orange?
a)
imposssible
b)
certain
13.
Find the probability of rolling a 7 on a single die.
a)
1/6
b)
7/6
c)
0
d)
7/7
14.

What is the probability of spinning a number less than 2 ?

a)

3/10

b)

3/5

c)

1/25

d)

1/5

15.

What is sample space?

a)

a process with an uncertain result

b)

a possible result of an action

c)

a list of all possible outcomes of an event

d)

a single outcome or group of outcomes

16.

Action: spin the spinner.

What is the sample space?

a)

1, 2, 3, 4, 5, 6

b)

2, 4, 6, 8, 11, 15

c)

2, 4, 6, 8, 11

d)

2, 2, 4, 4, 6, 6

17.

A new car can be purchased with a choice of two exterior colors (L and M) and five interior colors (1, 2, 3, 4, and 5). Which answer choice represents an organized list of all the possible color combinations of the car?

a)

(L, 1), (M, 2)

b)

(L, 1), (L, 2), (L, 3), (L, 4), (L, 5), (M, 1), (M, 2), (M, 3), (M, 4), (M, 5)

c)

(L, 1), (L, 2), (L, 3), (L, 4), (L, 5), (L, 1), (L, 2), (L, 3), (L, 4), (L, 5)

d)

(L, M), (1, 2), (1, 3), (1, 4), (1, 5)

18.

Two friends at a restaurant each order a fruit drink. The available flavors are orange (O), peach (P), or kiwi (K). Which list represents the sample space?

a)
b)
c)
d)
19.

Dennia's older sister needs to take either Physics, Algebra, or Chemistry this year. She can take the class during any one of six periods (1 through 6). What are the total number of possible schedules?

(a)  

20.

What is the sample space when rolling two dice?

(a)  

21.
Probability is ...
a)
the chance that some event will occur.
b)
a game that involves coins.
c)
a guarantee.