Free Printable Simple Probability Practice

1.

What is the definition of probability?

a)

Probability is a measure of the number of possible outcomes.

b)

Probability is a measure of the average of all possible outcomes.

c)

Probability is a measure of the likelihood of an event occurring.

d)

Probability is a measure of the certainty of an event occurring.

2.

If a fair six-sided die is rolled, what is the probability of rolling a 3?

a)

1/3

b)

1/2

c)

2/3

d)

1/6

3.

If a fair coin is flipped, what is the probability of getting heads?

a)

0.2

b)

1.0

c)

0.8

d)

0.5

4.

If a card is drawn from a standard deck of 52 cards, what is the probability of drawing a heart? (There are 52 cards)

Make sure you simplify the fraction in the calculator!!

a)

1/5

b)

1/3

c)

1/4

d)

1/2

5.

If a bag contains 5 red balls and 3 blue balls, what is the probability of randomly selecting a red ball?

a)

3/8

b)

2/5

c)

1/2

d)

5/8

6.

If a bag contains 4 red balls, 3 blue balls, and 2 green balls, what is the probability of randomly selecting a blue ball?

REMEMBER TO SIMPLIFY THE FRACTION IN YOUR CALCULATOR

a)

1/4

b)

2/9

c)

3/8

d)

1/3

7.

Probability is ...

a)

the chance that some event will occur.

b)

a game that involves coins.

c)

a guarantee.

8.

Probability can be written as ...

a)

a fraction

b)

a decimal

c)

a percent

d)

all of the above

9.

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)

1/2334

10.

What is the probability of spinning the spinner and landing on 7

a)

6/8

b)

1/8

c)

7/8

d)

8/8

11.

What is the probability of spinning yellow

a)

0

b)

1/12

c)

1/2

d)

3/4

12.

What is the probability of flipping a coin and getting heads?

a)

1/2

b)

1/3

c)

1/4

d)

Never, Tails never fails.

13.

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%

14.

What is the probability of spinning green?

a)

0

b)

1/4

c)

1/2

d)

3/4

15.

What is the probability of spinning red?

a)

0

b)

5/12

c)

1/2

d)

3/4

16.

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

17.

What is 78% written as a decimal?

MOVE THE DECIMAL TWO PLACES TO THE LEFT

a)

0.78

b)

7.8

c)

7.80

d)

0.078

18.

Write $\frac{3}{4}$ as a decimal.

a)

3.4

b)

0.34

c)

0.75

d)

0.075

19.

Express 0.86 as a percent.

MOVE THE DECIMAL TWO PLACES TO THE RIGHT

a)

8.6%

b)

86%

c)

8%

d)

.86%

20.

Convert 0.09 to a percent.

MOVE THE DECIMAL TWO PLACES TO THE RIGHT

a)

90%

b)

9/100

c)

9

d)

9%

21.

Convert 33% to a decimal.

MOVE THE DECIMAL TWO PLACES TO THE LEFT

a)

3.3

b)

0.33

c)

33/100

d)

0,033

22.

Write 75% as a decimal.

MOVE THE DECIMAL TWO PLACES TO THE LEFT

a)

0.75

b)

0.00075

c)

7.5

d)

$\frac{75}{100}$

23.

2% as a decimal

MOVE THE DECIMAL TWO PLACES TO THE LEFT

a)

0.02

b)

0.2

c)

2

d)

20

24.

Match the following fractions to there percentages.

a)

$\frac{3}{10}$

1.

30%

b)

$\frac{1}{4}$

2.

25%

c)

$\frac{1}{3}$

3.

33%

d)

$\frac{1}{5}$

4.

20%

e)

$\frac{2}{3}$

5.

67%

25.

Match the following percents to fractions.

a)

50%

1.

20/40

b)

26%

2.

13/50

c)

44%

3.

11/25

d)

86%

4.

43/50

e)

96%

5.

24/25

26.

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

27.

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

a)

1/6

b)

2/6

c)

5/6

d)

2

28.

What is 4/5 as a %?

(a)

29.

What is P(C)? (the probability of landing on c)

a)

1/4

b)

1/8

c)

1/6

d)

10%

30.

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

a)

3/5

b)

9/100

c)

1/10

d)

2/5

31.

What is .45 as a percent?

a)

4.5%

b)

45%

c)

.45%

32.

What is .02 as a percent?

a)

20%

b)

2%

c)

.02%

33.

When changing a decimal to a percent, you move the decimal 2 times to the

a)

right

b)

left

34.

$\frac{1}{4}$ as a decimal

a)

.4

b)

.25

c)

.5

35.

$\frac{4}{8}$ as a decimal

a)

.48

b)

.25

c)

.5

36.

What is $\frac{12}{36}$ simplified?

a)

$\frac{1}{2}$

b)

$\frac{1}{3}$

c)

$\frac{2}{3}$

37.

What is $\frac{8}{24}$ simplified?

a)

$\frac{1}{2}$

b)

$\frac{1}{3}$

c)

$\frac{2}{3}$

38.

What is $\frac{50}{100}$ simplified?

a)

$\frac{1}{2}$

b)

$\frac{1}{3}$

c)

$\frac{2}{3}$

39.

What is $\frac{4}{6}$ simplified?

a)

$\frac{1}{2}$

b)

$\frac{1}{3}$

c)

$\frac{2}{3}$

40.

$\frac{12}{20}\ =$

a)

$\frac{1}{5}$

b)

$\frac{2}{5}$

c)

$\frac{3}{5}$

d)

$\frac{4}{5}$

Simple Probability Practice

Total questions: 40

Worksheet time: 3hrs 20mins

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