Theoretical
Experimental
Determine the probability of an event (tree diagrams)
100

If there are 5 blue balls in a bag and 5 red balls in a bag, what is the probability choosing a red ball as a percent?

50%

100

You pulled 12 marbles out of a bag and 5 of them were blue, how many marbles aren't blue?

7/12

100

A school cafeteria is offering ham or turkey sandwiches, with water, milk, or juice for a drink. How many lunch combinations include an water?

2

200

There's a spinner with 5 sections, One section yellow, one's red, orange, blue and green. What's the probability of landing on orange as a fraction?

1/5 

200

Sidney saw different types of flowers on a hiking trip. Based on the different flowers below, what is the probability the next bird will be an orchid?

1 daisy, 1 orchid, 1 sunflower, 1 rose, 1 tulip.

1/5, or 0.20, or 20% 


200

Sidney and Jade are running for class president. Emily, Sidney jr, and Emma are running for vice president. How many winning combinations are possible?

6

300

There’s a spinner with 8 different sections, 2 are green, 4 are yellow, and the rest are blue. What’s the probability of landing on green as a fraction?

2/8 

300

A colour is randomly chosen from a bag, based on the results are below. What is the probability of selecting the colour blue? 

Purple = 16, Pink = 11, Blue = 29, Red = 19, Green = 25

29/100 or 0.29 or 29%

300

You're trying to decide what to wear to school. You have a black pair of pants, a grey pair of pants, and jeans. You also have a white shirt, a plaid shirt, and a red shirt. How many different outfit combinations can you make?

9

400

Two of 10 balloons are orange. What is the probability of receiving an orange balloon as a decimal?

0.2

400

Based on the results below, what is a the probability that the next type of candy that will be ordered is Hershey?

3 Kitkat, 5 Twix, 8 Hershey, 6 Snickers, 2 M&M, 1 Aero

8/25 = 32/100 = 32%


400

You are out getting ice cream, there's chocolate, vanilla, or strawberry ice cream, as for toppings there are sprinkles, caramel, or whipped cream. How many different combination of ice cream can you make?

500

There is contest and 54 contestants are men and 46 are women, what's the probability of the winner being a women as a percent?

46%


500

A letter is randomly picked from a bag. The results are written below. According to these results, what is the probability of selecting the letter T? 

O = 9, Z = 10, Y = 11, G = 12, T = 13, S =14, L =15, U = 16

13/100 or 0.13 or 13%

500

Sidney is packing for a trip. She packs a white shirt, a pink shirt, a blue shirt, and a green shirt. She also packs a black pants, jeans, and a gray pants. What is the probability that she wears the gray pants with a pink shirt on the trip?

1/12