Unit 8 Lessons 1 - 4 Review

Vocabulary

100

Define: Probability

The likelihood something will happen.

200

Define: Multiple

The product result of two numbers being multiplied. 

300

Define: Prime number

A number whose only factors are one and itself.

400

How would you read the following in terms of a deck of cards:

P(3 of hearts)

The probability of drawing a 3 of hearts.

500

Define: Even and Odd

Even: A number divisible by 2.

Odd: A number when divided by 2 will have a remainder of 1.

Marbles in a bag

100

There is a bag with 8 green marbles, 3 red marbles, 3 blue marbles and 6 orange marbles. 

What is the probability you draw a red marble?

3/20

200

There is a bag with 8 green marbles, 3 red marbles, 3 blue marbles and 6 orange marbles. 

What is the probability you draw a blue or an orange marble?

9/20

300

There is a bag with 8 green marbles, 3 red marbles, 3 blue marbles and 6 orange marbles. 

P(not green)

12/20 = 3/5

400

There is a bag with 8 green marbles, 3 red marbles, 3 blue marbles and 6 orange marbles. 

P(not pink)

20/20 = 1

500

There is a bag with 8 green marbles, 3 red marbles, 3 blue marbles and 6 orange marbles. 

P(not green or not blue)

17/20 + 9/20 - 9/20 = 20/20 = 1

Deck of Cards

100

What is the probability of drawing an 8?

4/52 = 1/13

200

What is the probability of drawing a King, Queen or Jack (face cards)?

4/52 + 4/52 + 4/52 = 12/52 = 3/13

P(King) = 4/52

P(Queen) = 4/52

P(Jack) = 4/52

300

P(red card < 8)

7/52 + 7/52 = 14/52 = 7/26

400

P(red 4 or black 7) 

2/52 + 2/52 = 4/52 = 1/13

500

P(red card < 4 or red face card)

6/52 + 6/52 = 12/52 = 3/13

Spinning a Spinner

100

(Use the spinner on the board)

What is the probability of spinning an even number?

6/12 = 1/2

{2, 4, 6, 8, 10, 12}

200

(Use the spinner on the board)

What is the probability of spinning a prime number?

5/12 

{2, 3, 5, 7, 11}

300

(Use the spinner on the board)

P(a multiple of 4)

3/12 = 1/4 

{4, 8, 12}

400

(Use the spinner on the board)

P(< 4 and is even)

1/12

{2}

500

(Use the spinner on the board)

P(< 10 - 4 or < 2 ) 

5/12 + 1/12 - 1/12 = 5/12

{1, 2, 3, 4, 5} 

Miscellaneous

100

How many cards are there in a standard deck?

52 (no jokers)

200

How many faces on a fair die?

6 (numbered 1-6)

300

P(you have a quiz tomorrow)

100%!

400

Why does each section on the spinner on the board have an equally likely chance of being landed on?

Each section on the spinner are an equally likely outcome because the sections are equally sized and there are no numbers that repeat. 

500

What are the 5 terms you can describe describe the likelihood of an outcome? 

Impossible, Unlikely, Even Chance, Likely, Certain