Probability Test
Name: ____________
Knowledge
1. Use the words likely, unlikely, impossible, possible or certain to describe each event.
A)
B)
C)
D)
You will be in school this afternoon.
On your way home you will meet a talking cat.
We will have a fire drill today.
The sun will rise tomorrow.
____________
____________
____________
____________
2.
R = red
O = orange
Y = yellow
B = blue
A)
B)
C)
D)
E)
F)
What colour is the spinner most likely to land on? _______
What colour is the spinner least likely to land on? _______
What colour is it impossible for the spinner to land on? ________
What is the exact probability the spinner will land on red (use a fraction)? _______
What is the exact probability a coin flipped will land on heads? _________________
What is the exact probability a die rolled will land on 3? _________________
Knowledge
/10
Level _____
Thinking
1. Draw a spinner where:
A) The most likely colour spun will be red.
B) The least likely colour spun will be yellow.
C) Green and blue are equally likely to be spun.
T ____
2. The chance of winning a game is 3/5. Explain what the numerator and denominator
represent.
T ____ C ____
3. A bag contains 5 red marbles and 5 yellow marbles. If I add two more yellow
marbles and two more red marbles, have I changed the probability that I will pull
out a red marble when I reach into the bag?
T ____ C ____
Thinking ____ Communication ____
Application
1.
At Mr. W’s Ice Cream Emporium, you can buy the Sunday Surprise! You get to
choose one ice cream flavour, one sauce, and one topping.
Ice cream flavour
Vanilla
Chocolate
Strawberry
Sauce
Topping
Hot Fudge
Butterscotch
Peanuts
Maraschino Cherry
Whip-Cream
Mr. W is making random Sunday’s for the weekend fun-run. What is the probability
the Sunday you get will have Chocolate ice-cream and a Whip-Cream topping?
A ____ C ____
2. You are standing with 2 of your friends. You each have a coin (all 3 of you). You flip
the three coins into the air. What is the probability the coins will all land on heads?
A ____ C ____
K:
T:
C:
A: