Name:_______________
Probability Test
Level 4:
Use the image above to decide on the following:
Q1. The sun will rise tomorrow?
Q2. A wizard will appear in the classroom right now?
Q3. A fish will swim in the sea?
Q4: If I tossed a coin what is the chance of getting heads?
Q5: If I rolled a 6 sided die what is the chance of rolling a 7?
Level 5:
Q6: If I rolled a six sided die what is the chance of rolling a 3 (display in fraction format)?
Q7: If I rolled a six sided die what is the chance of rolling a 5 (display in fraction format)?
Q8: If I rolled a six sided die what is the chance of rolling an even number (display in fraction
format)?
Name:_______________
Q9
Q10 Use the diagram above to answer the following question.
Give an answer using the scale 0-1. What is the chance I will meet an alien today?
Level 6:
Q11
Name:_______________
Q12
Q13
Q14
Name:_______________
Q15
Level 7:
Q16:
Example: Rolling a die once:
Sample space S = {1,2,3,4,5,6}
If I tossed a coin once what would its sample space be?
Q17: If I rolled a 10 sided die what would be its sample space?
Q18:
Name:_______________
Q19:
Q20
Name:_______________
Level 8:
Below we have data for eye colour of girls/boys in Mr A’s class
Boys
Girls
Brown
4
3
Blue
7
4
Q21. How many students are in the class?
Q22. How many boys have blue or green eyes?
Q23. How many students have green eyes?
Q24. How many students don’t have blue eyes?
Below is a Venn Diagram
150 College freshman were interview
 85 were registered for a Math class
 70 were registered for and English Class
 50 were registered both Math/English
Maths
MMMa
MMath
s set
Universal
English
English
Q25. How many signed up only for a Maths Class?
Q26. How many signed up only for an English Class?
Q27. How many signed up for Maths or English?
Q28. How many signed up for neither Maths or English?
Green
2
5
Name:_______________
Level 9:
Q29 Draw a tree diagram that shows the possible outcomes when two unbiased coins are tossed
once each.
Q30 Using the tree diagram above, how many possible outcomes are there?
Q31
92 people were asked how they got to work:




35 used a car
42 took public transport
8 rode a bicycle
7 walked
Calculate the Relative Frequencies (to 2 decimal places) of the following:
a)
b)
c)
d)
Car: =
Public Transport: =
Bicycle: =
Walking:=
Name:_______________
Level 10:
Q32. On her way to work, Sylvia drives through three sets of traffic lights. The probability of each set of lights
being green is 0.3. What is the probability that they are all green?
Q33. A bag contains 4 red balls and 3 green balls. A ball is taken out at random, and then put back; a second ball
is then taken from the bag. What is the probability that:
(a) Both balls are the same colour
b) At least one of the balls is green
c)The balls are of different colour