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Simple & Compound Probability

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.
P(1 and A)
a)
1/16
b)
1/10
c)
4/16
d)
1/4
2.
P(odd and A)
a)
1/4
b)
1/2
c)
2/5
d)
1/8
3.
P(less than 5 and B)
a)
1/6
b)
1/48
c)
6/48
d)
1/8
4.
P(not chow mein)
a)
7/8
b)
1/8
c)
2/7
d)
5/6
5.
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
6.
How many total outfit options are represented?
a)
12
b)
22
c)
3
7.

What is the probability of rolling a standard dice and having it land on an odd number?

a)

3/4

b)

1/3

c)

1/2

d)

2/5

8.
The probability of it raining today is 30%.  What is the probability that it will NOT rain?
a)
30%
b)
70%
c)
100%
d)
0%
9.
Find the probability of not rolling a 2 on a single die.
a)
1/6
b)
2/6
c)
5/6
d)
2
10.

There are 7 yellow cards, 3 blue cards, and 10 green cards in a bag. A card is chosen at random. What is the probability of choosing a blue or green card?

a)

13/20

b)

1/5

c)

3/10

d)

4/5

11.
The chart shows the number of times a marble was selected randomly from a bag.  What is the probability that the marble selected is NOT green or blue?
a)
21/38
b)
10/28
c)
5/14
d)
17/38
12.

Daniel bought a bag of 32 candy-coated chocolates. Of those candies, 11 are blue and 10 are orange. If Daniel selects a candy at random, what is the probability that the candy will NOT be blue or orange?

a)

11/32

b)

1/2

c)

11/16

d)

21/32

13.

Miss Ward spins a wheel to determine the number of homework problems to assign. There are 20 sections labeled 1–20. What is the probability that there will be more than 13 problems assigned for homework?

a)

13/20

b)

3/5

c)

4/9

d)

7/20

14.

If you spin twice, what is the probability the spinner stops on a shaded then striped number?

a)

3/25

b)

7/20

c)

7/10

15.
Lisa flipped the same coin 3 times. What is the probability she obtained all tails?
a)
1/2
b)
1/4
c)
1/16
d)
1/8
16.

Jon made 15 out of 35 free throws.

What is his experimental probability as a fraction?


**SIMPLIFY THE FRACTION!**

a)

3/7

b)

15/35

c)

1/2

d)

5/7

17.

Theoretically what is your chance of making a free throw?

Pick out your answer written as a percent.

a)

25%

b)

50%

c)

75%

d)

100%

18.

Kate spun the spinner 75 times and landed on "3" thirty times.

What is the experimental probability as a percentage?

a)

20%

b)

30%

c)

40%

d)

50%

19.

Which shows the sample space (all possible outcomes) for flipping two coins?

a)

H, T

b)

HH, HT, TH, TT

c)

HH, TT

d)

Dime, Nickel

20.

A number cube is rolled twice. What is the probability of getting a 6 on the first roll and an even number on the second roll?

a)

2/3

b)

5/36

c)

1/12

d)

1/36