Free Printable PROBABILITY

Worksheets

PROBABILITY - REVISION

Total questions: 26

Worksheet time: 56mins

Name

Class

Date

Probability is...

The chance something will happen

How often an event occurs

Only something we can theorise about

Can only be calculated after an experiment

Experimental Probability is:

What Will happen

What actually happens

What should happen

What I think Happens

Probability can be written as ...

a fraction

a decimal

a percent

all of the above

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

5/19

10/28

5/14

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

3/10

3/9

1/9

1/3

An unlikely chance event is closer to what number?

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

3/5

1/6

2/5

1/5

Is the spinner more likely or less likely to land on green than yellow?

more likely

less likely

What is the probability of the spinner landing on red?

5/12

1/5

5/5

3/5

10.

A bag contains 1 red marble, 2 blue marbles, and 3 green marbles. What is the probability of picking a red marble?

1/6

1/3

1/5

11.

So far this year Trisha's softball team has played 4 of their 20 games on Field A. What is the experimental probability that they will play their next game on Field A?

4/5

1/5

3/5

12.

At softball practice, Manny had 6 hits out of 15 times at bat. What is the experimental probability that Manny will not get a hit at his next at bat?

1/5

3/5

2/5

13.

P(C)

3/10 = 0.3 = 30%

1/10 = 0.1 = 10%

1/5 = 0.2 = 20%

2/5 = 0.4 = 40%

14.

There are 11 pennies and 9 dimes in a bag. P(dime)

45%

55%

15.

A letter is chosen from the word SUCCESS. The probability that the letter is not a C is:

2/7

3/5

5/7

4/7

3/7

16.

If you choose from the following M & M colors, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown

8/26

4/13

8/25

1/3

17.

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

3/10

3/5

1/25

1/5

18.

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

impossible

unlikely

equally likely

likely

19.

Probability can be expressed as a number between_____ and _____.

0 and 100

0 and 10

0 and 1

-1 and 1

20.

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

5/6

1/2

1/3

1/6

21.

A box has 3 limes, 5 grapes, and 2 oranges.

P (NOT lime)

3/10

30%

7/10

Answer Not Here

22.