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Probability (Simple & Compound)

Total questions: 20

Worksheet time: 40mins

Name
Class
Date
1.

What is the probability of spinning a yellow, green, or blue?

a)

3/4

b)

1/12

c)

1/3

d)

1/16

2.

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

3.
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%
4.
What is the probability of spinning red?
a)
0
b)
5/12
c)
1/2
d)
3/4
5.
Find the probability of not rolling a 2 on a single die.
a)
1/6
b)
2/6
c)
5/6
d)
2
6.

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

7.

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

8.

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

9.
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
10.
What is the probability of spinning green?
a)
0
b)
1/4
c)
1/2
d)
3/4
11.

What is the probability you spin an odd number and not yellow?

a)

5/18

b)

1/9

c)

1/3

d)

4/9

12.

You draw a marble from a bag that has 4 red, 2 blue, and 3 green, you also flip a standard coin. What is the probability you will draw a blue marble and flip a heads?

a)

1/9

b)

3/9

c)

5/6

13.

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

14.
A bag contains 2 blue marbles, 3 black marbles, and 5 red marbles. Mrs. Grow picks one marble, replaces it, then picks another. What is the probability of them both being blue?
P(blue and blue) 
a)
1/25
b)
1/5
c)
1/20
d)
2/5
15.

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

16.
P(1 and A)
a)
1/16
b)
1/10
c)
4/16
d)
1/4
17.
P(less than 5 and B)
a)
1/6
b)
1/48
c)
6/48
d)
1/8
18.
P(cereal or steak)
a)
9/40
b)
1/40
c)
8/40
d)
1/2
19.

Bag A= 9 red & 3 green marbles

Bag B=9 black & 6 orange marbles


P(BagA Green then BagB Black)

a)

3/20

b)

1/4

c)

3/31

d)

2/27

20.
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