Free Printable Probability 1

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Probability 1

Total questions: 27

Worksheet time: 2hrs 0mins

Name

Class

Date

What is an outcome?

The result of an experiment

The chance or likelihood of an event

A fraction, decimal, or a percent

An activity that gives various results

What is the P( not purple) on this spinner?

2/5

1/5

4/5

3/5

Find the probability of rolling a 7 on a single die.

1/6

7/6

7/7

What is the probability of spinning green?

1/4

1/2

3/4

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”?

2/7

1/6

5/7

25/26

The letters that form the word MATHEMATICS are placed in a bowl. What is the probability of choosing a letter that is a vowel?

7/11

4/11

2/11

5/26

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

Andrew picks one marble at a time from a box and replaces it. He repeats this process 25 times and records the results in the table. Based on the table, which color marble has an experimental probability of 1/5?

Yellow

Red

Blue

Green

A die is rolled once. What is the probability of rolling an odd number? Your answer should be a fraction in simplest form.

1/6

1/2

3/6

2/5

10.

A die is rolled once. What is the probability of rolling a 5 or a 6? Your answer should be a fraction in simplest form.

5/6

2/6

1/3

1/5

11.

A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. What is the probability that both pieces of fruit are apples.

2/15

3/17

1/19

6/21

12.

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.

3/20

1/4

3/31

2/27

13.

The two-way table above gives information about the grades for the semester in Mrs. Hardcase’s English class.

1) What is the probability a randomly selected student got an A or B for the semester?

15/100

20/100

35/100

65/100

14.

The two-way table above gives information about the grades for the semester in Mrs. Hardcase’s English class.

2) What is the probability a randomly selected student is male?

12/100

17/100

44/100

56/100

15.

The two-way table above gives information about the grades for the semester in Mrs. Hardcase’s English class.

3) What is the probability a randomly selected student earned a passing grade?

20/100

35/100

65/100

87/100

16.

What is Theoretical Probability?

The ratio of favorable outcomes to the total number of possible outcomes

The ratio of favorable outcomes to the total number of trials in an experiment

In probability, a controlled, repeated process (such as repeatedly tossing a coin).

A single possible result.

17.

Experimental Probability is:

What Will happen

What actually happens

What should happen

What I think Happens

18.

Which of the following describes theoretical probability?

a. Perform an experiment to determine the probability

a. Determining the expected probability of an event

a. Perform a simulation and count the number of possible outcomes

a. Use trials to count the number of desired outcomes

19.

Which of the following describes experimental probability?

a. Perform an experiment to determine the probability

a. Determining the expected probability of an event

a. Perform a simulation and count the number of possible outcomes

a. Use trials to count the number of desired outcomes

20.

Dylan made 15 out of 35 free throws.

What's his experimental probability as a simplified fraction?

3/7

15/35

1/2

5/7

21.

Tammy rolled a die five times.

Here is what she got on her five rolls: 1, 3, 3, 4, & 4

Find the experimental probability:

P(3) =

3/5

1/6

2/5

1/3

22.

What is the theoretical probability of flipping a coin and it lands on heads ? More than one answer can be correct

1/2

50%

3/8

37.5%

3.75%

23.

What is the experimental probability of rolling a 6?

$\frac{7}{15}$

$\frac{1}{2}$

$\frac{8}{15}$

$\frac{13}{30}$

24.

The experimental probability that an SUV will pass by Ariel's store is 0.4. If 500 cars pass by Ariel's store, how many can she expect to be SUVs?

200

100

150

25.

A coin is flipped 3 times. If you get tails once you get $5, tails twice you get $15, and tails on all three flips you get $40. What is the expected amount of money you will get?

$12.50

$7.50

$10

26.

Eva flips a coin. If she gets heads, she wins $4. If she gets tails, she loses $3. What is her expected value of a coin flip?

$0.50

-$0.50

27.

A student group sells 500 raffle tickets for $2 each. At the drawing the top prize will be a gift certificate for $100. Second prize will be a $50 gift card and there will be five 3rd prizes, each a $20 gift card. Do you expect to win or lose (on average)? How much?

lose an average of $5.50

lose an average of $1.50

win an average of $2.00

lose an average of $10.00

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Probability 1

Total questions: 27

Worksheet time: 2hrs 0mins

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