Free Printable Basic Probability

1.

How many outcomes are in the sample space for tossing one coin?

a)

1

b)

2

c)

4

d)

8

2.

What is the probability of spinning green?

a)

0

b)

1/4

c)

1/2

d)

3/4

3.

What is the probability of spinning red?

a)

0

b)

5/12

c)

1/2

d)

3/4

4.

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

5.

Find the probability of drawing a 10 from a standard deck of 52 cards.

a)

1 out of 52

b)

13 out of 52

c)

26 out of 52

d)

4 out of 52

6.

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%

7.

The chart below represents the number of marbles in a jar.
P(green) =

a)

5/19

b)

10/28

c)

5/14

8.

What is the probability of rolling 15 with a pair of dice?

a)

impossible

b)

unlikely

c)

equally likely

d)

likely

9.

Probability can be expressed as a number between_____ and _____.

a)

0 and 100

b)

0 and 10

c)

0 and 1

d)

-1 and 1

10.

Probability can be written as ...

a)

a fraction

b)

a decimal

c)

a percent

d)

all of the above

11.

What is the probability of rolling a cube and having it land as a six?

a)

1/6

b)

5/6

c)

1/3

d)

1/2

12.

What is the probability of rolling a cube and having land as an odd number?

a)

3/4

b)

1/3

c)

1/2

d)

2/5

13.

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%

14.

Find the probability of not rolling a 2 on a single die.

a)

1/6

b)

2/6

c)

5/6

d)

2

15.

Probability is ...

a)

the chance that some event will occur.

b)

a game that involves coins.

c)

a guarantee.

16.

A(n) ___________ is something that might happen.

a)

set

b)

probability

c)

event

d)

subset

17.

The collection of all possible outcomes is called the ____________________.

a)

set

b)

probability

c)

event

d)

sample space

18.

You have 5 pairs of pants, 6 shirts, and 2 pairs of shoes. How many total "outfits" do you have?

a)

$5+6+2=13$ outfits

b)

$\left(5+6\right)\cdot2\ =13$ outfits

c)

$5\cdot6\cdot2=60$ outfits

d)

$\left(5\cdot6\right)+2=32$ outfits

19.

You will roll a six-sided single die. What is the theoretical probability that you roll an even number?

a)

$P\left(even\right)\ =\ \frac{2}{3}$

b)

$P\left(even\right)\ =\ \frac{1}{3}$

c)

$P\left(even\right)\ =\ \frac{1}{2}$

d)

$P\left(even\right)\ =\ \frac{3}{4}$

20.

Probability is the measure of the _____ that an event will occur.

a)

outcome

b)

likelihood

c)

measure

d)

possible

21.

If the probability of an event is $\frac{5}{10}$ , which of the following best describes the event?

a)

The event will never ocurr

b)

The is a small chance that the event will occur

c)

The event is likely to occur

d)

The event will definitely occur

e)

The event is equally likely to occur

22.

Find P(the sum is greater than 7) =

a)

18/36

b)

15/36

c)

12/36

d)

9/36

23.

Find P(even number sum) =

a)

18/36

b)

24/36

c)

6/36

d)

30/36

24.

If a student was randomly chosen from this population, find P(male) = ?

a)

.5

b)

.6238

c)

.4917

d)

.4291

25.

How do you write 0.02 as a percent?

a)

20%

b)

200%

c)

2%

d)

.02%

26.

In a pet store, there are 6 puppies, 4 gerbils, and 7 parakeets. If a pet is chosen at random, what is the probability of choosing a puppy or a parakeet?

a)

11/17

b)

13/17

c)

10/17

d)

None of the above

27.

A number from 1 to 10 is chosen at random. What is the probability of choosing a 5 or an even number?

a)

3/5

b)

1/2

c)

1/5

d)

None of the above

28.

What is the sample space?

a)

6 bears

b)

orange, green, red, white, yellow

c)

2 red, 1 green, 1 orange, 1 yellow, 1 white

d)

2 , 1, 1, 1, 1

29.

What is the sample space for a standard six-sided die?

a)

1, 2, 3, 4, 5, 6

b)

6

c)

100%

d)

2, 3, 4, 5, 6

30.

Find the probability of rolling greater than a 1 on a single die.

a)

6/6

b)

5/6

c)

4/6

d)

1/6

Basic Probability

Total questions: 30

Worksheet time: 3hrs 30mins

Similar Resources on Wayground