Probability

Reducing Fractions

100

Reduce the following fraction to simplest form:

10/15

2/3

200

Reduce the following fraction to simplest form:

11/22

1/11

300

Reduce the following fraction to simplest form:

25/225

1/25

400

Reduce the following fraction to simplest form:

40/100

2/5

500

reduce the following fractions to the simplest form:

15/75

1/5

Probability Equations

100

1. Find the probability of spinning a number 8 or less on a spinner with 14 equal sections numbered 1 – 14

4/7

200

2. A bag contains a total of 30 candies. There are 10 cookies, 8 gummies, 3 lollipops, and 9 gobstoppers. You draw 1 candy at random from the bag. What is the probability of choosing cookies or gummies?

3/5

300

Each letter in the word HirowskiBoerner is written on a separate piece of paper and placed into a basket.  

What is the probability of pulling an “R” out of the basket? 

1/5

400

A penny is flipped once. What is the probability it lands on tails?

1/2

Tree Diagrams

100

Lucas sells bikes at his motor shop. He has bikes in 3 colors: Pink, White, and blue. The Pink and white bikes come with tassels or a horn at the front. The Blue bike comes with a hanging basket. Draw a tree diagram that represents Lucas’s bike’s.

Look at Miss. M's drawing 

200

Mom’s water ice sells 4 popular flavors of water ice: chocolate, cherry, mochaccino, and watermelon. For the chocolate and cherry flavors you can either choose whip cream or ice cream on top. For the Watermelon flavor you can choose graham crackers or sprinkles. Show the probability through a tree diagram.

See Miss. M's drawing

300

Larry owns a puppy shop. He has 5 different breeds of dogs: pugs, retrievers, labs, greyhounds, and terroirs. The retrievers and greyhounds come in blonde and brown. The terroirs come in black, white, and brown and the labs come in blonde or chocolate.  

See Miss. M's drawing

400

Miss. Musoleno has 15 people in her math class.  10 are boys and 5 are girls.  OF the 5 girls, they either have blonde or black hair.  The boys either have braces, or retainers.  Draw a tree diagram showing the probability. 

See Miss. M's drawing

Counting Principal

100

A school cafeteria has 5 options for main courses, 6 appetizer choices, and 5 dessert choices. How many different meals, made up of an appetizer, main course, and dessert, are there?

150

200

The agent has 10 vacation destinations available in 5 price ranges, with either basic or deluxe dining plans. How many combinations are there to choose from?

50

300

NASA scientists classified the extra-solar planets into 4 different sizes with 3 different atmosphere types and 7 temperature ranges. How many different planet types are there?

84

400

 An online company is offering a Mothers Day special. Pick one movie from 4 choices, one restaurant from 6 choices, and 1 box of chocolate from 5 choices. How many possible Mother’s Day options are there?

120

Anything Goes :)

100

Solve:

7x3

21

200

Distribute and Solve:

3(4m + 6) = 10

m = -2/3

300

2/3 + 4/5 =

22/ 15

400

Solve for x:

12x - 3 = 21

x = 2