Resources

Resources

Probability of simple events

Which sign makes the statement true?

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-1 ? -1.0

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=

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\neq

You pick a card at random.

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5678

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P(6)

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Write your answer as a fraction or whole number.

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\_\_\_\_

You pick a card at random.

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567

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P(5)

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Write your answer as a fraction or whole number.

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\_\_\_\_\_

You pick a card at random.

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789

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P(7)

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Write your answer as a fraction or whole number.

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\_\_\_\_\_

You pick a card at random.

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6789

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P(9)

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Write your answer as a percentage.

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\_\_\_\%

Lacey is picking out fabric for her bedroom. She has

10

fabric samples, and

4

of them are checkered.

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What is the probability that a randomly selected fabric sample will be checkered?

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Write your answer as a fraction or whole number.

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P(checkered) = ____

You pick a card at random.

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6789

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P(7)

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Write your answer as a percentage.

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\_\_\_\%

You pick a card at random.

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456

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P(4)

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Write your answer as a fraction or whole number.

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\_\_\_\_\_

400\%

5

Ms. Bell's mathematics class consists of

8

13

9

seniors. How many different ways can Ms. Bell create a

3

-member committee of sophomores if each sophomore has an equal chance of being selected?

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A box contains ten cards labeled

Q, R, S, T, U, V, W, X, Y

Z

. One card will be randomly chosen. What is the probability. of choosing a letter from

U

Z

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Write your answer as a fraction in simplest form.

2 \%

of a number equals

15

6 \%

of that number.

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12

-sided die is rolled. The set of equally likely outcomes is

\{1,2,3,4,5,6,7,8,9,10,11,12\}

. Find the probability of rolling a number less than

18

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The probability of rolling a number less than

18

\square

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(Type an integer or a simplified fraction.)

There is a spinner with

14

equal areas, numbered

1

14

. If the spinner is spun one time, what is the probability that the result is a multiple of

6

or a multiple of

4

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In a certain Algebra

2

27

18

of them play basketball and

17

of them play baseball. There are

11

students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball?

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There is a spinner with

15

equal areas, numbered

1

15

. If the spinner is spun one time, what is the probability that the result is a multiple of

5

and a multiple of

3

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There is a spinner with

10

equal areas, numbered

1

10

. If the spinner is spun one time, what is the probability that the result is a multiple of

2

and a multiple of

3

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There is a spinner with

13

equal areas, numbered

1

13

. If the spinner is spun one time, what is the probability that the result is a multiple of

4

or a multiple of

6

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There is a spinner with

14

equal areas, numbered

1

14

. If the spinner is spun one time, what is the probability that the result is a multiple of

4

or a multiple of

3

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In a certain Algebra

2

26

17

of them play basketball and

21

of them play baseball. There are

15

students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball?

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There is a spinner with

15

equal areas, numbered

1

15

. If the spinner is spun one time, what is the probability that the result is a multiple of

5

or a multiple of

3

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There is a spinner with

11

equal areas, numbered

1

11

. If the spinner is spun one time, what is the probability that the result is a multiple of

2

and a multiple of

5

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There is a spinner with

15

equal areas, numbered

1

15

. If the spinner is spun one time, what is the probability that the result is a multiple of

4

or a multiple of

3

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There is a spinner with

14

equal areas, numbered

1

14

. If the spinner is spun one time, what is the probability that the result is a multiple of

5

or a multiple of

2

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There is a spinner with

12

equal areas, numbered

1

12

. If the spinner is spun one time, what is the probability that the result is a multiple of

3

or a multiple of

4

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There is a spinner with

10

equal areas, numbered

1

10

. If the spinner is spun one time, what is the probability that the result is a multiple of

2

and a multiple of

5

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There is a spinner with

11

equal areas, numbered

1

11

. If the spinner is spun one time, what is the probability that the result is a multiple of

2

or a multiple of

3

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There is a spinner with

15

equal areas, numbered

1

15

. If the spinner is spun one time, what is the probability that the result is a multiple of

3

or a multiple of

5

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Translate the phrase to an algebraic expression. Let x represent the unknown number.

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a fourth of a number

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The algebraic expression is

\square

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(Use integers or fractions for any numbers in the expression.)

z

. Express your answer as a proper or improper fraction in simplest terms.

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\frac{3}{8}=-\frac{1}{2}-\frac{5}{6} z

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z=

Solve the following equation for

b

. Be sure to take into account whether a letter is capitalized or not.

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(h-N) b=Q

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b=

When an integer is subtracted from

4

times the next consecutive odd integer, the difference is

5

. Find the value of the lesser integer.

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c

. Express your answer as a proper or improper fraction in simplest terms.

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\frac{1}{2}-\frac{1}{4} c=\frac{2}{7}

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c=

5 \frac{3}{4}

into an improper fraction.

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